UPPCS Prelims 2024 GS Paper I PYQs with explanations

Option (d), 3, 2, 1, 4, is correct. The Prime Minister's Rozgar Yojana (3) began in 1993 to help educated unemployed youth start ventures. The Rural Employment Generation Programme (2), run by KVIC, began in 1995 to set up village industries. The Pradhan Mantri Gramodaya Yojana (1) was launched in 2000-01 for basic rural services such as health, education and drinking water. The Valmiki Ambedkar Awas Yojana, or VAMBAY (4), began in 2001 for urban slum housing. Options (a), (b) and (c) misorder these. Concept: PMRY and REGP were merged into the PM's Employment Generation Programme (PMEGP) in 2008. VAMBAY was later folded into the JNNURM's slum housing programme.

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Option (a), A-1, B-2, C-3, D-4, is correct. Gunnar Myrdal (A) wrote Economic Theory and Under-developed Regions (1957) (1), with his theory of 'backwash' and 'spread' effects. Albert Hirschman (B) wrote The Strategy of Economic Development (1958) (2), arguing for unbalanced growth through forward and backward linkages. Nicholas Kaldor (C) wrote Strategic Factors in Economic Development (1967) (3), stressing manufacturing as the engine of growth. Adam Smith (D) wrote The Wealth of Nations (1776) (4). Options (b), (c) and (d) misplace these. Concept: Ragnar Nurkse argued for balanced growth, and W.W. Rostow set out the five stages of growth. Kaldor also advised India on tax reform in 1956.

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Option (c), only 1, is correct. Statement 1 is right: cereal yield is the amount of cereal produced per unit of harvested land, usually expressed in kilograms per hectare. This is the definition used by the World Bank and the FAO, covering wheat, rice, maize, barley, oats, rye, millet, sorghum and others. Statement 2 is wrong: the total production of cereals in a country is a different measure, called cereal production, which depends on both yield and area. Concept: India's yields are lower than China's or the world average for many cereals, even though India is the second-largest producer of rice and wheat. The Green Revolution of the 1960s raised yields through high-yielding varieties, fertilisers and irrigation.

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Option (a), 2 is true and 1 is false, is correct. The quarterly bulletins of the Periodic Labour Force Survey (PLFS) show India's urban unemployment rate, by current weekly status for people aged 15 and above, at about 8.4% in July-September 2019 and about 7.2% in July-September 2022. So the rate declined over the period, though it had spiked to over 20% in April-June 2020 during the COVID lockdown. Statement 1 is wrong because the rate did not stay the same. Concept: the PLFS is run by the National Statistics Office under MoSPI. Since 2025 it publishes monthly and quarterly estimates for both rural and urban areas. Usual status measures longer-term employment.

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Option (d), 3 and 4, is correct. The global Multidimensional Poverty Index has been published jointly since 2010 by the Oxford Poverty and Human Development Initiative (OPHI) at the University of Oxford (3) and UNDP's Human Development Report Office (4). Statement 1 is wrong: the World Bank and IMF do not publish it. Statement 2 is wrong: there is no 'Oxford Poverty and Health Organisation', and the WHO is a separate agency. Concept: the MPI uses 10 indicators under health, education and living standards, and a person is poor if deprived in a third or more of them. NITI Aayog has a national MPI. The 2023 global report said India had lifted about 41.5 crore people out of poverty between 2005-06 and 2019-21.

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Option (c), both true and R explains A, is the key. The assertion is true: DPIIT data show Singapore as the largest source of FDI equity inflows to India in 2023-24, at about US$11.8 billion, ahead of Mauritius. The reason is true: the 2016 protocol to the India-Mauritius tax treaty ended the capital-gains tax exemption on shares bought after 1 April 2017, so investors stopped routing money through Mauritius and moved much of it to other hubs like Singapore. Note: Singapore's treaty was amended in the same way, so its lead also reflects its own role as a financial hub; R is only a partial explanation, and (a) is arguable. Concept: a 2024 protocol added a principal purpose test to the Mauritius treaty.

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Option (b), A-4, B-3, C-2, D-1, is correct. Pradhan Mantri Awas Yojana – Gramin (A) was launched on 20 November 2016 at Agra (4), restructuring the earlier Indira Awaas Yojana. The Jal Jeevan Mission (B), to give every rural household a tap connection, was announced on 15 August 2019 (3). Swachh Bharat Mission – Gramin (C) began on 2 October 2014 (2), Gandhi Jayanti. Pradhan Mantri Ujjwala Yojana (D), for free LPG connections to poor women, was launched on 1 May 2016 at Ballia, Uttar Pradesh (1). Options (a), (c) and (d) misplace these. Concept: Ujjwala 2.0 began in 2021 at Mahoba. India declared all villages open-defecation free in October 2019.

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Option (c), only 1, 2 and 4, is correct. UNDP's Human Development Index combines three dimensions: a long and healthy life, measured by life expectancy at birth (4); knowledge, measured by mean and expected years of schooling (2); and a decent standard of living, measured by gross national income per capita in PPP dollars (1). The condition of the environment (3) is not part of the HDI. Options (a), (b) and (d) fail. Concept: the HDI was devised by Mahbub ul Haq with Amartya Sen in 1990. UNDP also publishes the Planetary pressures-adjusted HDI, which does adjust for carbon emissions and material use, plus the Inequality-adjusted HDI and the Gender Inequality Index.

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Option (c), 1, 2, 3, 4, is correct. The Swachh Bharat Mission (1) began on 2 October 2014. Pradhan Mantri Kaushal Vikas Yojana (2), the flagship skill training scheme, was launched in July 2015, along with the Skill India Mission. Pradhan Mantri Garib Kalyan Yojana (3), a tax and income disclosure scheme after demonetisation, came in December 2016. The Pradhan Mantri Mahila Shakti Kendra scheme (4), to empower rural women through community participation, was approved in November 2017. Options (a), (b) and (d) misorder these. Concept: the Pradhan Mantri Garib Kalyan Package of March 2020, and the free foodgrain Anna Yojana, were different, later COVID-era measures. Trap: do not confuse the two.

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Option (d), geometric, arithmetic, is correct. In An Essay on the Principle of Population (1798), Thomas Robert Malthus argued that population, if unchecked, grows in a geometric progression (1, 2, 4, 8, 16), doubling about every 25 years, while food supply grows only in an arithmetic progression (1, 2, 3, 4, 5). So population would outrun food. Options (a), (b) and (c) are wrong: (c) reverses the two, and linear and exponential are not Malthus's terms, though they describe the same idea. Concept: Malthus named preventive checks, like late marriage and moral restraint, and positive checks, like famine, disease and war. Technology and the Green Revolution have so far proved his prediction wrong.

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Option (a), only 3, is correct. The Economic Survey 2022-23 says that in response to the worsening global supply disruptions after the Russia-Ukraine war, the government cut taxes on fuel and on certain imported products. Central excise duty on petrol and diesel was cut in November 2021 and May 2022, and customs duties on some inputs, like edible oils and steel raw materials, were reduced. Statement 1 is wrong: food and fertiliser subsidies were raised, not cut, including the free foodgrain scheme. Statement 2 is wrong: taxes were reduced, not raised. Concept: the RBI raised the repo rate by 250 basis points from May 2022 to February 2023 to fight inflation.

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Option (a), A-2, B-3, C-4, D-1, is correct. Under the Pradhan Mantri Shram Yogi Maan-Dhan Yojana (A), launched in 2019 for unorganised workers, the worker pays ₹55 to ₹200 a month depending on entry age (2), matched by the government, for a ₹3,000 monthly pension at 60. The Pradhan Mantri Jeevan Jyoti Bima Yojana (B) charges ₹436 a year (3) for ₹2 lakh life cover. The Pradhan Mantri Suraksha Bima Yojana (C) charges ₹20 a year (4) for ₹2 lakh accident cover. Under the Atal Pension Yojana (D), the contribution depends on the pension amount the subscriber chooses (1). Options (b), (c) and (d) misplace these. Concept: PMJJBY, PMSBY and APY were launched in 2015.

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Option (a), both true and R explains A, is correct. The assertion is true: development is now defined broadly as improving living standards and welfare, including health, education, freedom and the quality of life, not only income. The reason is true and explains it: growth in per capita income is not a sufficient measure of development, because higher income may be unequally shared and may not bring better health, education or environment. Concept: Amartya Sen's capability approach sees development as expanding people's freedoms. Dudley Seers asked what had happened to poverty, unemployment and inequality. The HDI, the Multidimensional Poverty Index and the SDGs all reflect this broader view of development.

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Option (d), both, is correct. The India-Australia Economic Cooperation and Trade Agreement (Ind-Aus ECTA) came into force on 29 December 2022. It was India's first trade agreement with a developed country in over a decade. Statement 2 is right: its first Joint Committee meeting, held in May 2024, was attended by India's Commerce Secretary Sunil Barthwal. Statement 1 is accepted: that meeting set up a mechanism for exchanging monthly data on preferential imports, which was first-of-its-kind among India's free trade agreements. Concept: the ECTA removed duties on most Indian exports to Australia. The two sides are negotiating a broader Comprehensive Economic Cooperation Agreement. Trap: the 'first-of-its-kind' refers to the data mechanism, not the FTA itself.

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Option (a), 1, 2, 3, 4, is correct. The Integrated Rural Development Programme (1) began in 1978-79 and was extended nationwide in 1980, to give poor rural families assets through subsidy and bank credit. The Swarnjayanti Gram Swarozgar Yojana (2) replaced IRDP and related schemes in April 1999, focusing on self-help groups. The National Rural Employment Guarantee Act (3) was passed in 2005 and came into force in February 2006; it was renamed MGNREGA in 2009. Pradhan Mantri Jan-Dhan Yojana (4), for universal bank accounts, was launched in August 2014. Options (b), (c) and (d) misorder these. Concept: SGSY was restructured as the National Rural Livelihood Mission (Aajeevika) in 2011.

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Option (a), only 1 and 2, is correct. Statement 1 is accepted: India is classed as a developing, or less developed, economy, with low per capita income, a large farm workforce and widespread poverty, though it is now the world's fourth-largest economy by nominal GDP. Statement 2 is right: India is a mixed economy, with both public and private sectors, as adopted in the Industrial Policy Resolutions of 1948 and 1956. Statement 3 is wrong: Adam Smith, author of The Wealth of Nations (1776), is called the father of economics; J.M. Keynes is the father of modern macroeconomics, through his General Theory (1936). Concept: the 1991 reforms of liberalisation, privatisation and globalisation shifted India toward the market.

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Option (d), A true but R false, is correct. The assertion is true: a flexible, or floating, exchange rate is the value of a national currency set by market demand for and supply of foreign currency, which come from trade, investment and remittances. The reason is false: the central bank does not determine the demand and supply of foreign currency. It can only intervene by buying or selling dollars to smooth sharp swings. Concept: India moved to a market-determined exchange rate in 1993, after the LERMS dual rate of 1992. The RBI follows a 'managed float', using forex reserves of about US$700 billion. A fixed or pegged rate, as under Bretton Woods, is set by the government.

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Option (b), 1, 2 and 3, is correct. All three were steps toward financial inclusion. Bank nationalisation (1), of 14 banks in 1969 and six more in 1980, pushed branches into rural and unbanked areas and directed credit to priority sectors. Regional Rural Banks (2), set up in 1975 on the Narasimham Working Group's advice, served small and marginal farmers, labourers and artisans. Adoption of villages by bank branches (3), under the Lead Bank Scheme of 1969 and service area approach of 1989, tied branches to specific villages. Concept: later steps include self-help group bank linkage (1992), no-frills accounts (2005), PM Jan-Dhan Yojana (2014) and payments banks. The RBI's Financial Inclusion Index measures progress.

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Option (d), 1 and 2, is correct. Statement 1 is right: the National Food Security Act, 2013 covers up to 75% of the rural and 50% of the urban population, about two-thirds of the people, for subsidised foodgrains. Statement 2 is right: it gives special nutritional support to pregnant women and lactating mothers, who get meals and maternity benefit of at least ₹6,000, and to children, through anganwadis and mid-day meals. Statement 3 is wrong: it was first issued as an ordinance on 5 July 2013 and notified as an Act in September 2013, not in 2010. Concept: eligible households get 5 kg of grain per person a month, and Antyodaya households 35 kg; since January 2023 the grain has been free under PM Garib Kalyan Anna Yojana.

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Option (c), both true and R explains A, is correct. The assertion is true: Indian states that score high on the Human Development Index, such as Kerala, Tamil Nadu, Himachal Pradesh and Goa, also tend to rank high in NITI Aayog's SDG India Index, while states like Bihar and Jharkhand rank low on both. The reason is true and explains it: many SDG targets track health, education, poverty and living standards, the same ground the HDI measures through life expectancy, schooling and income. Concept: the SDG India Index, launched in 2018, scores states from 0 to 100 on 16 goals. In the 2023-24 edition, Kerala and Uttarakhand jointly topped with 79 points, and Bihar was last.

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Option (b), A-2, B-3, C-1, D-4, is correct. The World Bank's Migration and Development Brief for 2022 put India (C) first (1), with about US$111 billion in remittances, the first country to cross US$100 billion. Mexico (A) was second (2) with about US$61 billion, mostly from the United States. China (B) was third (3) with about US$51 billion. The Philippines (D) was fourth (4) with about US$38 billion. Options (a), (c) and (d) misplace these. Concept: India's inflows are driven by migrants in the Gulf, the US, the UK and Singapore. Remittances are a stable source of foreign exchange, larger than FDI for India. The World Bank aims to cut sending costs below 3% under SDG 10.

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Option (d), both 1 and 2, is correct. The National Intellectual Property Rights Policy, approved in May 2016, says it reaffirms India's commitment to the Doha Development Agenda and the WTO's TRIPS Agreement, while using flexibilities such as compulsory licensing (statement 1). It made the Department of Industrial Policy and Promotion the nodal department for coordinating IPR in India (statement 2), and copyrights and semiconductor designs were moved to it. Concept: DIPP was renamed the Department for Promotion of Industry and Internal Trade (DPIIT) in 2019. The policy's slogan was Creative India, Innovative India, and it set up the Cell for IPR Promotion and Management (CIPAM). Section 3(d) of the Patents Act blocks evergreening of patents.

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Option (c) is the untrue statement. When resources are plentiful, more species can share or divide a niche, a process called resource partitioning, so the number of species rises, not falls. Option (a) is true: dominant species use a broad range of resources, so they occupy extensive niches. Option (b) is true: with enough resources in a natural ecosystem, many species can coexist. Option (d) is true: when resources are spread evenly, no single species can monopolise them, so dominance is low. Concept: a niche is a species' role, including its habitat, food and timing. Gause's competitive exclusion principle says two species with identical niches cannot coexist for long. MacArthur's warblers showed resource partitioning.

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Option (d), A-2, B-4, C-1, D-3, is correct. Similipal (A), with its sal forests, waterfalls and melanistic tigers, is in Mayurbhanj district of Odisha (2). Nokrek (B), in the Garo Hills, is in Meghalaya (4) and protects wild citrus (Citrus indica). Agasthyamalai (C) spans Kerala and Tamil Nadu and is counted under Kerala (1) in the key. Manas (D), on the Bhutan border, is in Assam (3). Options (a), (b) and (c) misplace these. Concept: India has 18 biosphere reserves, of which 12, including all four here, are in UNESCO's World Network. The first was the Nilgiri Biosphere Reserve (1986). Cold Desert in Himachal is a non-UNESCO reserve, and the largest is the Gulf of Kachchh.

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Option (b), an increase of 2°C in Indian Ocean temperature, is correct. Mass bleaching on the Andaman and Nicobar reefs, notably in 1998, 2010 and 2016, was caused by marine heatwaves, when sea surface temperatures stayed about 1-2°C above the normal summer maximum for weeks. Under such heat stress, corals expel their symbiotic algae (zooxanthellae), turn white and many die. Option (a), coastal industry, and option (c), marine pollution, are local stresses but were not the main cause. Option (d) is wrong: cooling did not cause the bleaching. Concept: the world saw its fourth global bleaching event in 2023-25. Bleached corals can recover if the heat stress ends soon. INCOIS issues coral bleaching alerts.

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Option (d), Migration – Ecesis – Reaction – Stabilisation, is correct. In F.E. Clements' model of biotic succession, the stages are nudation (a bare area forms), invasion, which includes migration (seeds and spores arrive), ecesis (they germinate and establish) and aggregation, then competition, reaction (organisms change the soil, light and moisture of the site) and finally stabilisation, when a stable climax community forms. Options (a), (b) and (c) misorder these, since a species must arrive before it can establish. Concept: primary succession starts on bare rock (lithosere) or water (hydrosere), with lichens or phytoplankton as pioneers. Secondary succession, after fire or farming, is faster because soil remains.

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Option (b), Pin Valley – Jammu and Kashmir, is the wrongly matched pair. Pin Valley National Park is in the Spiti valley of Lahaul and Spiti district, Himachal Pradesh. It is a cold desert park known for the snow leopard and the Siberian ibex. The other pairs are correct: Rajaji (a), near Haridwar, is in Uttarakhand and is a tiger reserve; Bandipur (c), part of the Nilgiri Biosphere Reserve, is in Karnataka; and Similipal (d) is in Odisha. Concept: Himachal's other national parks are the Great Himalayan National Park (a World Heritage Site), Inderkilla, Khirganga and Simbalbara. Jammu and Kashmir has Dachigam, Kishtwar and Salim Ali national parks; Ladakh has Hemis.

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Option (d), only 2, is correct. Statement 2 is right: the IPCC's Sixth Assessment Report (2021-23) says that limiting warming to 1.5°C, or even 2°C, requires deep, rapid and sustained reductions in greenhouse gas emissions in all sectors this decade. For 1.5°C, global emissions must fall by about 43% from 2019 levels by 2030 and reach net-zero CO₂ around 2050. Statement 1 is wrong: the IPCC rejects the idea that gradual, limited cuts are enough. Concept: the IPCC, set up in 1988 by the WMO and UNEP, does not do its own research but assesses published science. It shared the 2007 Nobel Peace Prize with Al Gore. Its seventh assessment cycle is under way.

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Option (d), A true but R false, is correct. The assertion is true: the report of the World Commission on Environment and Development, chaired by Norway's Gro Harlem Brundtland, titled Our Common Future (1987), popularised sustainable development as meeting present needs without compromising future generations. The reason is false: The Limits to Growth (1972) was a separate report, written by Donella Meadows and others at MIT for the Club of Rome, which used computer models to warn that growth would hit resource limits within a century. So options (a), (b) and (c) fail. Concept: the 1972 Stockholm Conference created UNEP. The Rio Earth Summit (1992) built on Brundtland, and Rio+20 (2012) launched the SDG process.

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Option (c), terrestrial habitants, is correct. Plants and animals that live on land are called terrestrial, from the Latin 'terra', meaning earth. Examples are trees, grasses, lions and humans. They are adapted to land through features like lungs, skeletons and roots. Option (b), aquatic habitants, live in water, either fresh or marine. Options (a) and (d) are wrong: abiotic and biotic refer to the non-living and living parts of an ecosystem, not to where organisms live. Concept: amphibians like frogs live both on land and in water. Arboreal animals live in trees, fossorial animals burrow underground, and aerial animals such as birds and bats fly. Terrestrial biomes include forests, grasslands, deserts and tundra.

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Option (a), both true and R explains A, is correct. The assertion is true: sulphur dioxide and nitrogen dioxide dissolve in rain water to form sulphuric and nitric acids, and carbon dioxide forms weak carbonic acid, lowering the rain's pH below about 5.6, the threshold for acid rain. The reason is true and explains it: air becomes polluted with high levels of these gases from burning coal in power plants, smelting and vehicle exhausts, which is why polluted regions get acid rain. Concept: acid rain damages forests, lakes and buildings; the yellowing of the Taj Mahal has been blamed partly on emissions from the Mathura refinery and Agra industries. The Taj Trapezium Zone was set up to protect it.

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Option (d), 3, 1, 4, 2, is correct. As per Census 2011, Uttar Pradesh (3) had about 19.98 crore people, the largest state population in India. Bihar (1) was third in India with 10.41 crore, after Maharashtra. West Bengal (4) was fourth with 9.13 crore. Undivided Andhra Pradesh (2) was fifth with 8.46 crore. So the descending order is 3, 1, 4, 2. Options (a), (b) and (c) misorder these. Concept: Maharashtra was second with 11.24 crore. Sikkim had the smallest state population. Bihar was the most densely populated state at 1,106 per sq km. Trap: the question uses undivided Andhra Pradesh, since Telangana was formed in 2014.

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Option (a), both true but R does not explain A, is correct. The assertion is true: warmer air can hold more water vapour, so if the moisture content stays the same, relative humidity, the ratio of actual vapour to the maximum possible, falls as temperature rises. That is why relative humidity is lowest in the afternoon. The reason is also true: absolute humidity, the actual mass of vapour per unit volume of air, rises when more water evaporates. But the fall in relative humidity comes from the higher holding capacity of warm air, not from evaporation, so R does not explain A. Concept: air is saturated at 100% relative humidity, and cooling it to the dew point causes condensation, forming dew, fog or clouds.

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Option (b), Pycnocline – sea water density, is correct. A pycnocline is a layer of the ocean where water density changes rapidly with depth. It separates the light surface layer from the dense deep water and limits vertical mixing. Option (a) is wrong: an ecocline is a gradual change in physical conditions and communities between two ecosystems, not biodiversity itself. Option (c) is wrong: a thermocline is a layer of rapid change in water temperature, not air temperature. Option (d) is wrong: a halocline is a layer of rapid change in salinity, not temperature. Concept: the ocean has three layers: a warm mixed surface layer, the thermocline zone, and cold deep water. An ecotone is a sharp transition zone between ecosystems.

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Option (b), A-3, B-4, C-2, D-1, is correct. Carl O. Sauer (A), the American geographer, proposed the idea of agricultural hearths, with planting (vegetative) hearths in South-East Asia and seed hearths elsewhere (3). Cryophyte steppe (B), made up of cold-adapted plants, belongs to the Arctic tundra (4). Adolf Engler (C), the German botanist, classified the world's floral regions (2). The Puszta (D) is the temperate grassland of Hungary (1). Options (a), (c) and (d) misplace these. Concept: other temperate grasslands are the Prairies (North America), Pampas (Argentina), Veld (South Africa), Downs (Australia) and Steppes (Eurasia). Sauer wrote Agricultural Origins and Dispersals (1952).

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Option (c), Muri – Chhattisgarh, is the wrongly matched pair. Muri, with Hindalco's alumina refinery, is in Ranchi district of Jharkhand, not Chhattisgarh. The other pairs are correct: Alupuram near Aluva (Alwaye) in Kerala (a) had one of India's first aluminium smelters; Belagavi (Belgaum) in Karnataka (b) has an aluminium plant using bauxite from nearby deposits; and Hirakud in Odisha (d) has Hindalco's smelter, powered by the Hirakud dam. Concept: Chhattisgarh's aluminium plant is BALCO at Korba. NALCO has its alumina refinery at Damanjodi and smelter at Angul in Odisha. Odisha has India's largest bauxite reserves, and aluminium smelting needs cheap power, so plants sit near coal or hydro.

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Option (c), both true and R explains A, is correct. The assertion is true: the Himalayas are young fold mountains that are still rising, by a few millimetres a year in places, as measured by GPS. The reason is true and explains it: the Indian plate continues to push north into the Eurasian plate at about 4-5 cm a year, and the compression folds and thrusts up the crust. Options (a), (b) and (d) fail. Concept: the collision began about 50 million years ago, when the Tethys Sea closed. The same stress causes major earthquakes, as in Nepal (2015). The main thrust faults are the Main Central Thrust, the Main Boundary Thrust and the Himalayan Frontal Thrust. Mount Everest was re-measured at 8,848.86 m in 2020.

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Option (c), A-4, B-3, C-2, D-1, is correct. The Hutar coalfield (A) lies in Palamu district of Jharkhand (4), in the Damodar-Koel valley. The Ib River coalfield (B), in Jharsuguda and Sundargarh, is in Odisha (3). The Tatapani-Ramkola coalfield (C), in Surguja and Balrampur districts, is in Chhattisgarh (2). The Umaria coalfield (D) is in Madhya Pradesh (1). Options (a), (b) and (d) misplace these. Concept: most of India's coal is Gondwana coal, found in river valleys like the Damodar, Mahanadi, Son, Godavari and Wardha. Jharkhand has the largest reserves, while Chhattisgarh and Odisha lead output. Korba, Talcher and Singrauli are major fields. Tertiary coal is found in the North-East.

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Option (c), A-4, B-1, C-2, D-3, is correct. The Upper Bari Doab Canal (A) takes off from the Ravi at Madhopur headworks (4) and irrigates the doab between the Beas and Ravi. The Sirhind Canal (B) takes off from the Sutlej at Ropar (1) and is one of India's largest canal systems. The Gurgaon Canal (C) draws water from the Yamuna at the Okhla barrage (2). The Indira Gandhi Canal (D) starts at the Harike barrage, where the Sutlej and Beas meet, and also gets Ravi water through the link system (3). Options (a), (b) and (d) misplace these. Concept: the Indira Gandhi Canal, once the Rajasthan Canal, is India's longest canal and irrigates the Thar desert.

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Option (b), Bihar's share of rice output – 15.7%, is the wrongly matched pair. Bihar's share of India's rice production is only about 5-6%, well below 15.7%. The other pairs are accepted. West Bengal (a) grows three rice crops a year: aus (autumn), aman (winter) and boro (summer). Uttar Pradesh (c) is among the top states by rice area, along with West Bengal. The 100 cm isohyet (d) roughly marks the western limit of rain-fed rice, beyond which irrigation is needed. Concept: West Bengal is the top rice producer, followed by Uttar Pradesh and Punjab. Rice needs temperatures above 25°C and rainfall above 100 cm, and Punjab and Haryana grow it with canals and tubewells.

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Option (a), both, is correct. Statement 1 is right: cotton is mainly a kharif crop, sown with the onset of the monsoon in June-July and picked from October onward, though in parts of Tamil Nadu it is also grown in winter. Statement 2 is right: cotton needs moderate rainfall of about 50-75 cm a year, with 210 frost-free days, bright sunshine and high temperature of 21-30°C. Heavy rain at picking time harms the fibre. Concept: it grows best in the black (regur) soils of the Deccan, which hold moisture. Gujarat and Maharashtra lead production. India is the largest cotton producer in the world along with China, and Bt cotton was approved in 2002.

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Option (c), both true but R does not explain A, is correct. The assertion is true: after alluvial soil, red and yellow soil is the second largest soil group in India, covering about 18% of its area, mainly in Tamil Nadu, Karnataka, Odisha, Chhattisgarh and Jharkhand. The reason is also true: red soil fringes the black soil region of the Deccan lava plateau on the south, east and north. But its position around the black soil does not explain why it is the second largest group, which comes from the vast area of old crystalline rocks it forms on. Concept: red soil gets its colour from iron oxide, and turns yellow when hydrated. It is poor in nitrogen, phosphorus and humus.

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Option (b), A-4, B-3, C-2, D-1, is correct. Kanchipuram (A), the Pallava capital with temples like Kailasanatha, is an ancient temple city (4). Jaisalmer (B), the 'Golden City', was founded by Rawal Jaisal in 1156, in the medieval period (3). Kodaikanal (C) was developed as a hill station by American missionaries and British officials in the 1840s, during the colonial period (2). Bhilai (D), built around the steel plant set up with Soviet help in 1955-59, is a post-independence planned city (1). Options (a), (c) and (d) misplace these. Concept: other post-independence planned cities are Chandigarh, by Le Corbusier, Bhubaneswar and Gandhinagar. Fatehpur Sikri and Jaipur are medieval planned cities.

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Option (c), A-3, B-2, C-4, D-1, is the key. Mango showers (A), pre-monsoon rains in April and May, help ripen mangoes along the Kerala and coastal Karnataka belt (3). Blossom or cherry showers (B) bring coffee into flower in Kerala and interior Karnataka (2). Norwesters or Kalbaisakhi (C) are violent evening thunderstorms in West Bengal and Assam (4), useful for tea, jute and rice. The loo (D) is the hot, dry wind blowing across the northern plains from Punjab to Bihar in May and June (1). Options (a), (b) and (d) misplace these. Concept: the mango shower is usually linked with Kerala and Karnataka together, so the key's split is a matter of convention; in Assam the Norwesters are called Bordoisila.

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Option (b), Khartoum – Ethiopia, is the wrongly matched pair. Khartoum, where the Blue Nile and White Nile meet, is the capital of Sudan, not Ethiopia; Ethiopia's capital is Addis Ababa, the seat of the African Union. The other pairs are correct: Naypyidaw (a) became Myanmar's capital in 2005, replacing Yangon; Dublin (c) is the capital of Ireland; and Ottawa (d) is the capital of Canada. Concept: Sudan's civil war since April 2023 between the army and the Rapid Support Forces has devastated Khartoum, and the army moved its base to Port Sudan. South Sudan, independent since 2011, has Juba as its capital. Ethiopia's Grand Renaissance Dam is on the Blue Nile.

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Option (a), both, is correct. Statement 1 is right: in the Planning Commission's 15 agro-climatic regions (1989), the Upper Gangetic Plain region covers central and western Uttar Pradesh and the Hardwar and Udham Singh Nagar areas of Uttarakhand. Statement 2 is right: it is a highly irrigated area, using canals such as the Upper and Lower Ganga canals and tubewells, with irrigation intensity above 130% and cropping intensity around 140% or more. Wheat, rice, sugarcane and potato are the main crops. Concept: the 15 regions start with the Western Himalayan region and include the Lower, Middle and Trans-Gangetic plains. UP falls in three Gangetic regions and the Central Plateau region (Bundelkhand).

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Option (a), A-1, B-3, C-2, D-4, is correct. Debsa Pass (A), between the Parvati valley of Kullu and Spiti, is about 5,360 m high (1). Rohtang Pass (B), between Kullu and Lahaul, is about 3,978 m (3); the Atal Tunnel now bypasses it. Bara-lacha La (C), on the Manali-Leh road, is about 4,850-4,890 m (2), and is the source area of the Chandra, Bhaga and Yunam rivers. Banihal Pass (D), in the Pir Panjal range between Jammu and Kashmir, is about 2,832 m (4), with the Jawahar tunnel and the Banihal-Qazigund road tunnel beneath it. Options (b), (c) and (d) misplace these. Concept: the Atal Tunnel (9.02 km), opened in 2020, is the world's longest highway tunnel above 10,000 feet.

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Option (c), both true but R does not explain A, is correct. The assertion is true: jute has long been grown in the Bengal delta and is treated as native to the Indian subcontinent, with Corchorus olitorius and C. capsularis as the main species. The reason is also true: jute is a kharif crop sown from February to May-June and harvested from July to October. But its sowing season has nothing to do with where the plant originated, so R does not explain A. Concept: jute, the 'golden fibre', needs high temperature, heavy rain above 150 cm and fresh alluvial soil renewed by floods. West Bengal produces most of India's jute, and India is the largest producer, with Bangladesh close behind.

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Option (b), intertrappean beds – fossils of sea plants and animals, is the wrongly matched pair. The intertrappean beds are sediments laid down in lakes, ponds and rivers in the gaps between lava flows. They hold fossils of freshwater plants and animals, such as the fruits and pollen studied by Birbal Sahni, not marine ones. The other pairs follow the standard textbook division of the Deccan Traps: the lower trap about 150 m (c), the middle trap about 1,200 m (a) and the upper trap about 450 m (d). Concept: the Deccan Traps were erupted about 66 million years ago, near the end of the Cretaceous, when India passed over the Reunion hotspot. Weathering of the basalt formed black soil.

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Option (b), A false but R true, is correct. The assertion is false: jet streams, noticed by bomber pilots in World War II, are narrow bands of very fast winds in the upper troposphere, at about 9-14 km, but they blow mainly from west to east. The subtropical westerly jet and the polar front jet are westerly. Only the seasonal tropical easterly jet over India in summer is easterly. The reason is true as textbooks give it: jet stream cores reach speeds of about 300-500 km per hour. Concept: the subtropical westerly jet lies south of the Himalayas in winter and brings western disturbances. Its shift north of the Tibetan plateau in June helps the monsoon burst.

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Option (b), A-3, B-1, C-4, D-2, is correct. The Pyrenees (A) form the border between Spain and France (3), with the small state of Andorra in between. The Alps (B) dominate Switzerland (1), with peaks like the Matterhorn and Jungfrau; Mont Blanc, the highest Alpine peak, is on the France-Italy border. The Balkan Mountains (C), or Stara Planina, run east-west across Bulgaria (4) and give the Balkan peninsula its name. The Apennines (D) form the backbone of Italy (2). Options (a), (c) and (d) misplace these. Concept: these are young fold mountains of the Alpine system, formed as the African plate pushed into Europe. The Carpathians arc through Romania, and the Urals divide Europe from Asia.

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Option (a), both, is correct. Statement 1 is right: about half of India's geographical area, around 51-55%, is under cultivation, a much higher share than in the USA (about 17%), China (about 12-13%) or Japan (about 12%). Its large plains and plateaus make most land arable. Statement 2 is right: India's location in the tropical monsoon region, with warm temperatures all year, allows crops in three seasons, namely kharif, rabi and zaid, and a wide range of crops from rice to wheat to cotton. Concept: India's net sown area is about 140 million hectares and gross cropped area about 210 million, giving cropping intensity of about 150%. The USA has the largest total arable area.

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Option (d), A-2, B-4, C-1, D-3, is correct. At Devprayag (A), the Alaknanda and Bhagirathi meet to form the Ganga (2). At Rudraprayag (B), the Alaknanda meets the Mandakini, which comes from Kedarnath (4). At Karnaprayag (C), the Alaknanda meets the Pindar, which rises at the Pindari glacier (1). At Tehri (D), the Bhagirathi met the Bhilangna (3); the old town is now under the Tehri dam's reservoir. Options (a), (b) and (c) misplace these. Concept: the Panch Prayag on the Alaknanda are Vishnuprayag, Nandprayag, Karnaprayag, Rudraprayag and Devprayag. The Tehri dam, about 260 m high, is India's tallest, and New Tehri was built to resettle the town.

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Option (a), both, is correct. Statement 1 is right: north-western Europe gets rainfall in every month of the year, with a slight winter maximum, from the cyclones and moist winds coming off the Atlantic. Statement 2 is right: Western Europe lies in the belt of the westerlies, about 40°-60° N, and these winds blow over the warm North Atlantic Drift before reaching land. This gives the cool temperate oceanic, or West European, climate with mild winters and cool summers. Concept: this climate type is also found in British Columbia, southern Chile, Tasmania and New Zealand. Deciduous forests of oak and beech grow there, and dairy farming is common. The Mediterranean climate further south has dry summers.

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Option (a), 2, 4, 3, 1, is correct. The Pontic Mountains (2) line the Black Sea coast of northern Turkey and are the westernmost. The Zagros (4) run north-west to south-east through western Iran, along the border with Iraq. The Hindu Kush (3) lies mainly in Afghanistan, reaching into north-west Pakistan. The Karakoram (1), with K2, the world's second-highest peak, lies in Gilgit-Baltistan and Ladakh and is the easternmost. So the order from west to east is 2, 4, 3, 1. Options (b), (c) and (d) misorder these. Concept: these ranges belong to the Alpine-Himalayan belt, formed by the collision of the African, Arabian and Indian plates with Eurasia. The Zagros hold Iran's oil fields, and the Elburz lie north of Tehran.

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Option (d), Mekong river – South-West, is the wrongly matched pair. The Mekong rises on the Tibetan plateau and flows mainly south and south-east through China, Myanmar, Laos, Thailand, Cambodia and Vietnam to the South China Sea, not south-west. The other pairs are correct. The Amur (a) flows along the Russia-China border and finally turns north-east into the Strait of Tartary. The Syr Darya (b) flows north-west from the Tien Shan to the Aral Sea. The Angara (c) flows north out of Lake Baikal to join the Yenisei. Concept: the Mekong Delta is Vietnam's rice bowl, and the Mekong River Commission manages the river. The Amu Darya and Syr Darya were drained for cotton, shrinking the Aral Sea.

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Option (b), Kuwait – Kashagan, is the wrongly matched pair. Kashagan is a giant offshore oil field in the Kazakh sector of the northern Caspian Sea, found in 2000, and is one of the largest discoveries of recent decades. It is in Kazakhstan, not Kuwait. The other pairs are correct: Haft Kel (a) is an oil field in Khuzestan, Iran; Dhahran (c) in Saudi Arabia is where oil was first struck in 1938 and is Saudi Aramco's base; and Zubair (d) is near Basra in southern Iraq. Concept: Kuwait's main field is Burgan, the world's second-largest. Saudi Arabia's Ghawar is the largest conventional field, and Iraq's Rumaila and Kirkuk are major fields. Iran's Masjed Soleyman struck oil in 1908.

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Option (d), both, is correct. Statement 1 is right: Mediterranean regions, around 30°-40° latitude on the western sides of continents, get most of their rain in winter, with dry, sunny summers. Statement 2 is right: around the winter solstice the pressure and wind belts shift south, which brings the rain-bearing westerlies and their cyclones over these lands in the Northern Hemisphere. In summer the subtropical high returns and the trade winds give dry, stable weather. Concept: this climate occurs around the Mediterranean Sea, in California, central Chile, the Cape region of South Africa and south-west Australia. It is famous for citrus, grapes, olives and wine, and winter wheat.

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Option (a), 4, 2, 3, 1, is correct. Balaji Vishwanath (4) became Peshwa in 1713 under Shahu. Balaji Baji Rao, called Nana Saheb (2), held office from 1740 to 1761, the period of the Third Battle of Panipat. Narayan Rao (3) became Peshwa in 1772 after his brother Madhav Rao I died, and was murdered in 1773 at the instigation of his uncle. Raghunath Rao, or Raghoba (1), then seized the office in 1773-74. Options (b), (c) and (d) misorder these. Concept: the Barabhai council under Nana Phadnavis backed the infant Sawai Madhav Rao against Raghoba, who turned to the British. That led to the First Anglo-Maratha War and the Treaty of Salbai (1782).

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Option (a), both, is correct. Statement 1 is right: ancient texts and archaeology mention many river ports, such as Champa, Pataliputra and Varanasi on the Ganga and Tamralipti near its mouth, linking inland trade to the sea. Statement 2 is right: there were large entrepots, centres where goods were collected and re-exported, such as Barygaza (Bharuch), Sopara, Arikamedu near Puducherry and Kaveripattinam (Puhar). Concept: the Periplus of the Erythraean Sea (1st century CE) describes Indian ports and Roman trade in pepper, textiles and gems for gold. Muziris in Kerala, perhaps at Pattanam, was another big port. The Uttarapatha and Dakshinapatha were the main land routes.

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Option (d), 3, 4, 1, 2, is correct. The Sena dynasty of Bengal, which came from Karnataka, runs from Samanta Sena to Hemanta Sena (3), who carved out a small kingdom. Vijaya Sena (4) built it into a power by ousting the Palas in the late 11th and early 12th century. Ballala Sena (1) succeeded him and is credited with spreading Kulinism and writing the Danasagara. Lakshmana Sena (2) was the ruler at Nadia when Bakhtiyar Khalji attacked around 1204. Options (a), (b) and (c) misorder these. Concept: Lakshmana Sena's court had Jayadeva, author of the Gita Govinda, and Dhoyi, who wrote Pavanaduta. The Palas were Buddhist, while the Senas were orthodox Hindu rulers.

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Option (c), only 1, is correct. Statement 1 is right: Bairam Khan received the title Khan-i-Khanan, 'lord of lords'. Statement 2 is wrong: on 14 February 1556, when the young Akbar was crowned at Kalanaur in Punjab, his first act was to appoint Bairam Khan as vakil-us-saltanat, the regent and chief minister, and give him the title Khan-i-Khanan at the same time. So the title came with the appointment. Concept: Bairam Khan led the Mughal victory at the Second Battle of Panipat (1556) over Hemu. He fell from power in 1560, was sent to Mecca, and was killed at Patan in Gujarat in 1561. His son Abdur Rahim also became Khan-i-Khanan.

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Option (a), both, is correct. Statement 1 is right: the Justice Party, founded as the South Indian Liberal Federation in 1916 by T.M. Nair, P. Theagaraya Chetty and C. Natesa Mudaliar, attacked the Congress as a Brahmin-dominated body. Statement 2 is right: it demanded separate communal representation for non-Brahmins, on the lines of what the Morley-Minto reforms of 1909 had given to Muslims. Concept: the Montford reforms gave non-Brahmins reserved seats in Madras, and the party won the 1920 elections and ran the province, passing the first communal reservation orders in 1921. It later merged into Periyar's Dravidar Kazhagam in 1944. Its 'Non-Brahmin Manifesto' came in 1916.

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Option (d), only 2, is the key. Statement 2 is right: members of the Workers and Peasants Parties worked within the Congress to make it more radical, more committed to the masses and more socialist. Statement 1 is doubtful as worded: the parties grew province by province, with Bengal's from 1926 and Bombay's from early 1927, and an all-India organisation, the All India Workers and Peasants Party, was formed only at the Calcutta conference in December 1928. Concept: leaders included S.A. Dange, Muzaffar Ahmed, P.C. Joshi and S.S. Mirajkar. The Meerut Conspiracy Case (1929) put many of them on trial and crippled the movement. The Congress Socialist Party followed in 1934.

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Option (d), 1, 2, 3, 4, is correct. The East India Association (1) was founded by Dadabhai Naoroji in London in 1866 to present Indian views to the British public. The National Indian Association (2) was set up by the English reformer Mary Carpenter in 1870 in Bristol. The Indian Society (3) was formed by Anandamohan Bose in London in 1872. The Indian Association (4) was launched in Calcutta by Surendranath Banerjea and Anandamohan Bose in July 1876. Options (a), (b) and (c) misorder these. Concept: the Indian Association held the all-India National Conference (1883 and 1885), which later merged with the Indian National Congress, founded in December 1885.

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Option (b), 4, 1, 2, 3, is correct. A British parliamentary delegation (4) reached India on 6 January 1946 to meet Indian leaders. The Royal Indian Navy revolt (1) broke out in Bombay on 18 February 1946, when ratings of HMIS Talwar went on strike. Prime Minister Attlee announced the Cabinet Mission (2) in the House of Commons on 19 February 1946, and it arrived in March. The Interim Government (3), led by Nehru, took office on 2 September 1946. Options (a), (c) and (d) misorder these. Concept: the Cabinet Mission (Pethick-Lawrence, Stafford Cripps, A.V. Alexander) proposed a three-tier federation. The Muslim League's Direct Action Day on 16 August 1946 led to the Calcutta killings.

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Option (c), only 1, is correct. Statement 1 is right: Behramji Malabari, a Parsi journalist and reformer of Bombay, campaigned for raising the age of consent through his 'Notes on Infant Marriage and Enforced Widowhood' (1884). The Age of Consent Act, 1891 raised the age of consent for girls from 10 to 12 years. Statement 2 is wrong: Bal Gangadhar Tilak opposed the Act as interference by a foreign government in Hindu social custom, though he did not oppose reform as such. Concept: the death of the child bride Phulmoni in 1889 prompted the Act. The Sarda Act of 1929 later fixed the minimum marriage age at 14 for girls and 18 for boys.

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Option (a), both true and R explains A, is correct. The assertion is true: Shivaji faced resistance from powerful Deshmukh families of the Deccan, such as the Mores of Javli, the Ghorpades and the Dalvis. The reason is true and explains it: these Deshmukhs held hereditary rights as vassals of the Bijapur sultanate and preferred to stay feudal lords under it rather than accept a new, independent Maratha state that would curb their power. Shivaji conquered Javli in 1656 after killing Chandrarao More. Concept: Shivaji reduced the power of hereditary officials by paying many officers in cash instead of jagirs. His council of eight ministers was the Ashtapradhan, and he was crowned at Raigad in 1674.

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Option (a), both, is the key. Statement 1 is accepted: many textbooks say Ashoka's definition of Dhamma draws on the Buddhist Rahulovada-sutta, in which the Buddha teaches his son Rahula about truthfulness and right conduct; the Bhabru edict lists a Rahulovada among texts Ashoka recommended. Statement 2 is right: Rock Edict V says that when he had been consecrated 13 years, that is in his 14th regnal year, Ashoka created the new post of Dhamma-mahamattas to spread Dhamma. Note: the link between his definition of Dhamma and that sutta is a textbook view rather than a settled fact, so statement 1 is somewhat doubtful. Concept: Rock Edict XIII describes the Kalinga war and remorse.

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Option (d), A-4, B-3, C-2, D-1, is correct. Devanna Bhatta (A), a 12th-13th century jurist from the Deccan, wrote the Smriti Chandrika (4), a major digest of Hindu law. Hemadri (B), minister of the Yadava kings of Devagiri, wrote the Chaturvarga Chintamani (3), and the Hemadpanti temple style is named after him. Madhavacharya (C), of the Vijayanagara court, wrote the Parashara Madhaviya (2), a commentary on the Parashara Smriti. Ballala Sena (D), the Sena king of Bengal, wrote the Danasagara (1), on gifts. Options (a), (b) and (c) misplace these. Concept: the Mitakshara by Vijnaneshwara and the Dayabhaga by Jimutavahana are the two main schools of Hindu inheritance law.

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Option (a), both true and R explains A, is correct. The assertion is true: the Turks succeeded in India, first with Mahmud of Ghazni's raids (1000-1027) and then with Muhammad Ghori, who defeated Prithviraj Chauhan at the Second Battle of Tarain in 1192 and laid the base of the Delhi Sultanate. The reason is true and explains it: North India had no political unity; it was divided among rival Rajput states like the Chauhans, Gahadavalas, Chandelas and Paramaras, who did not unite against the invaders. Concept: historians also cite the Turks' better cavalry and mounted archers, their military organisation and the iqta system. Qutbuddin Aibak founded the Sultanate in 1206.

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Option (b), neither 1 nor 2, is correct. Statement 1 is wrong: the Congress Socialist Party was founded at Patna in May 1934 and formally constituted at Bombay in October 1934, not January 1934. Its leaders included Acharya Narendra Dev, Jayaprakash Narayan, Minoo Masani, Achyut Patwardhan, Ram Manohar Lohia and Yusuf Meherally. Statement 2 is wrong: Nehru sympathised with socialism, inspired the young radicals and gave them a voice, but he never formally joined the CSP. Subhas Bose was not a member either. Concept: the CSP worked as a socialist group inside the Congress, not as a rival party. Its leaders later left in 1948 to form the Socialist Party. Trap: Nehru's socialist speeches, such as at Lucknow in 1936, are often mistaken for CSP membership.

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Option (c), 2, 3, 1, 4, is correct. Sheikh Mubarak, the scholar father of Abul Fazl and Faizi, died in 1593. Faizi, Akbar's poet laureate and one of his navratnas, died in 1595. Abul Fazl was murdered in 1602 by Bir Singh Deo Bundela at Prince Salim's instigation while returning from the Deccan. Prince Daniyal, Akbar's youngest son, died of drink at Burhanpur in 1605, shortly before Akbar himself died that year. Options (a), (b) and (d) jumble the order. Concept: Abul Fazl wrote the Akbarnama and Ain-i-Akbari, and Sheikh Mubarak is linked to the Mahzar of 1579. Prince Murad died in 1599. With two sons dead, Salim (Jahangir) became the unrivalled heir.

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Option (b), 4, 3, 1, 2, is correct. The Congress ministries resigned in October-November 1939 to protest India being declared at war without consultation (4). The Ramgarh session, presided over by Maulana Azad, met in March 1940 (3). Viceroy Linlithgow's August Offer came on 8 August 1940, offering dominion status as the ultimate goal and an expanded Executive Council (1). Sir Stafford Cripps arrived in March 1942 (2). Options (a), (c) and (d) misplace these events. Concept: the Muslim League marked 22 December 1939 as Deliverance Day and passed the Lahore (Pakistan) Resolution in March 1940. Individual satyagraha began in October 1940 with Vinoba Bhave. Gandhi called the Cripps offer a post-dated cheque, and Quit India followed in August 1942.

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Option (c), A-3, B-2, C-1, D-4, is correct. K.P. Jayaswal's Hindu Polity (1924) argued that ancient India had republics and representative institutions. A.L. Basham's The Wonder That Was India (1954) is a classic survey of pre-Muslim Indian culture. D.D. Kosambi's An Introduction to the Study of Indian History (1956) used a Marxist method based on modes of production. Vincent A. Smith's The Early History of India (1904) was an influential colonial-era narrative. Options (a), (b) and (d) swap Jayaswal and Kosambi or Kosambi and Smith. Concept: Kosambi also wrote The Culture and Civilisation of Ancient India, Smith wrote Akbar the Great Mogul, and R.S. Sharma and Romila Thapar continued the social-history approach. Trap: Jayaswal and Kosambi are the usual swap.

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Option (c), both true and R explains A, is the official key. The early nationalists, or Moderates (Naoroji, Ranade, Gokhale, Pherozeshah Mehta), saw British rule as a providential link that would bring modern education, science, rule of law and institutions. Because they accepted the rule itself, their criticism targeted what Naoroji called un-British rule in India: the drain of wealth, racial discrimination, costly administration and denial of rights. Concept: their method was petitions, prayers and protests, and their economic critique of the drain was their lasting contribution. Note: R describes a consequence of A rather than its cause, so (a), both true but R not the explanation, is arguable; the key treats them as linked. Also, 'only' slightly overstates R, since Moderates did demand reforms.

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Option (b), Principal of Lahore College, is the statement that is not correct, per the key. W.A.J. Archbold, a Cambridge historian, served as Principal of MAO College, Aligarh (c), around 1905-09, where his talks with Muslim leaders are linked to the Simla Deputation of 1906. He then headed Dacca College, a government college (a), and later Muir Central College, Allahabad (d), according to the Cambridge alumni record. No record shows him as principal of a Lahore college. Concept: Archbold is remembered because the Simla Deputation's address to Lord Minto, demanding separate electorates, was reportedly drafted with his help. Separate electorates came with the Morley-Minto Reforms of 1909. Note: this is an obscure fact, and the key rests on limited records.

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Option (a), 2, 3, 1, 4, is correct. Nana Fadnavis, the Maratha minister who held the confederacy together, died in March 1800. His death opened the way to the Treaty of Bassein (1802) and the Second Anglo-Maratha War. Lord Wellesley was recalled in 1805 because his expensive wars alarmed the Company directors. The Vellore Mutiny broke out in July 1806, set off by new dress and turban rules for sepoys. The Anglo-Nepalese War was fought in 1814-16 under Lord Hastings and ended with the Treaty of Sugauli. Options (b), (c) and (d) disorder these events. Concept: Sugauli gave the British Kumaon, Garhwal and Shimla hill areas, and Gorkha regiments date from this war. William Bentinck was the Madras Governor recalled after Vellore.

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Option (a), A-4, B-3, C-1, D-2, is correct. Bakshi Jagabandhu Bidyadhar Mahapatra led the Paika Rebellion of 1817 in Khurda, Odisha, against loss of land and salt monopoly. Mufti Muhammad Aiwaz led the Bareilly rising of 1816 against a new police tax. Edachena Kunkan Nair fought alongside Pazhassi Raja in the Malabar (Wayanad) resistance. Radharam led a revolt in Sylhet. Options (b), (c) and (d) swap these leaders. Concept: the Government of India has promoted the Paika Rebellion as an early freedom struggle, and its bicentenary was marked in 2017. Other early revolts include the Poligar wars, Velu Thampi in Travancore (1808-09) and the Kol uprising (1831-32). Trap: Paika = Odisha, not Bihar or Bengal.

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Option (a), A-2, B-1, C-4, D-3, is correct. Lallanji Gopal wrote The Economic Life of Northern India (c. AD 700-1200), a study of early medieval trade, crafts and agrarian life. Mohammad Habib and K.A. Nizami edited Volume V of A Comprehensive History of India, The Delhi Sultanat. K.S. Lal wrote History of the Khaljis, on Alauddin Khalji and his dynasty. Dasharatha Sharma wrote Early Chauhan Dynasties, on the Chauhans of Sakambhari and Ajmer, including Prithviraj III. Options (b), (c) and (d) swap these. Concept: other medievalists include Irfan Habib (The Agrarian System of Mughal India), Satish Chandra (Medieval India) and R.P. Tripathi (Some Aspects of Muslim Administration). Trap: K.S. Lal = Khaljis, and Dasharatha Sharma = Chauhans of Rajasthan.

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Option (c), only 1, is correct. Statement 1 is right: Kunwar Singh, the elderly zamindar of Jagdishpur near Arrah, led the 1857 revolt in Bihar. He fought across Bihar and Uttar Pradesh and won back Jagdishpur shortly before he died in April 1858. Statement 2 is wrong: Lord Dalhousie refused to recognise Damodar Rao, the son adopted by Raja Gangadhar Rao and Rani Lakshmi Bai, as heir. He annexed Jhansi in 1854 under the Doctrine of Lapse. Concept: other states taken under the Doctrine of Lapse include Satara (1848), Jaitpur and Sambalpur (1849), Udaipur (1852) and Nagpur (1854). Awadh was annexed in 1856 on grounds of misgovernance, not lapse. Trap: the denial of recognition is what fuelled the Rani's revolt.

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Option (b), 4, 3, 1, 2, is correct. Fa-Hien came during the reign of Chandragupta II (c. 399-412 CE) and wrote Fo-kuo-ki, A Record of Buddhist Kingdoms. Hiuen Tsang visited under Harsha (c. 630-645 CE), studied at Nalanda and wrote Si-yu-ki. I-Tsing travelled by sea in the late 7th century (c. 671-695 CE) and spent years at Nalanda. Al-Biruni came with Mahmud of Ghazni in the early 11th century and wrote Kitab-ul-Hind (Tahqiq-i-Hind). Options (a), (c) and (d) misorder them. Concept: other travellers include Megasthenes (Indica, Mauryan court), Marco Polo (Kakatiya kingdom, 13th century), Ibn Battuta (Muhammad bin Tughlaq) and Abdur Razzaq (Vijayanagara). Trap: I-Tsing came after Hiuen Tsang, not before.

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Option (c), both true but R not the correct explanation, is correct. Balban (1266-87) held an exalted theory of kingship, calling the Sultan zil-i-Ilahi, the shadow of God. He crushed the Turkish nobles known as the Chahalgani, used spies (barids) and introduced court rituals such as sijda and paibos, so A is true. R is also true: he kept a strong army and fortified the north-west frontier against the Mongols, putting his son Prince Muhammad in charge there. But his centralisation came mainly from his theory of kingship and the need to break the nobles, not from frontier defence. Concept: Balban chose consolidation over conquest. Trap: both are true, but R describes a separate policy, not the cause of A.

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Option (a), A-3, B-1, C-4, D-2, is correct. The Human Development Report (A) is published by the United Nations Development Programme (3), first in 1990, with the HDI devised by Mahbub ul Haq and Amartya Sen. The World Economic Outlook (B) is published by the International Monetary Fund (1), twice a year. The World Investment Report (C) is published by the UN Conference on Trade and Development (4) and tracks foreign direct investment. The Emissions Gap Report (D) is published by the UN Environment Programme (2) before each climate COP. Options (b), (c) and (d) misplace these. Concept: the World Bank publishes the World Development Report, and the WEF the Global Competitiveness and Gender Gap reports.

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Option (c), only 1, is the key. Statement 1 is right as at the time the question was framed: India hosted the first Voice of the Global South Summit virtually in January 2023 and the second, also virtually, in November 2023. A third was held in August 2024, so by the exam date India had already held three. Statement 2 is wrong: the Global South refers to developing and less developed countries, mostly in Asia, Africa and Latin America, not developed ones. Note: 'recently concluded its 2nd' was dated by the exam, though the key still fits the framing. Concept: India used the summits to bring Global South priorities to its G20 presidency, which admitted the African Union as a permanent G20 member in 2023.

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Option (b), 1, 4, 2, 3, is correct. World Heritage Day (1), the International Day for Monuments and Sites, is on 18 April, set by ICOMOS in 1982. The International Day of Light (4) is on 16 May, the anniversary of Theodore Maiman's first laser in 1960. World Thyroid Day (2) is on 25 May. World No Tobacco Day (3), set by the WHO, is on 31 May. Options (a), (c) and (d) misorder these. Concept: other days in this window are Earth Day (22 April), World Press Freedom Day (3 May), International Day of Biological Diversity (22 May) and World Environment Day (5 June). Trap: International Day of Light was proclaimed by UNESCO after the International Year of Light in 2015.

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Option (b), A-3, B-1, C-2, D-4, is correct. Gopi Thotakura (A), a pilot and entrepreneur from Andhra Pradesh, flew on Blue Origin's NS-25 suborbital flight in May 2024 as the first Indian space tourist (3). Dipa Karmakar (B) won vault gold at the Asian Gymnastics Championships in Tashkent in May 2024, the first Indian gymnast to win gold there (1); she retired in October 2024. Aroh Barjatya (C), an Indian-born NASA scientist at Embry-Riddle University, led the APEP sounding rocket study of the April 2024 solar eclipse's effect on the ionosphere (2). Dev Patel (D), the British actor of Slumdog Millionaire, made his directorial debut with the thriller Monkey Man (4). Options (a), (c) and (d) misplace these.

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Option (b), Anasuya Sengupta, is correct. Kolkata-born actor Anasuya Sengupta won the best performance prize in the Un Certain Regard section at the 77th Cannes Film Festival in May 2024 for The Shameless, directed by Bulgarian filmmaker Konstantin Bojanov. She was the first Indian to win this award. Options (a), (c) and (d), Kiara Advani, Urvashi Rautela and Sobhita Dhulipala, did not win it. Concept: at the same festival, Payal Kapadia's All We Imagine as Light won the Grand Prix, the second-highest award, and was the first Indian film in the main competition in 30 years. FTII student Chidananda Naik's Sunflowers Were the First Ones to Know won the La Cinef prize.

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Option (c), A-3, B-2, C-1, D-4, is correct. Gitanas Nauseda (A) was re-elected President of Lithuania (3) in May 2024. Luong Cuong (B) became President of Vietnam (2) in October 2024, after To Lam took over as party general secretary. Halla Tomasdottir (C), a businesswoman, was elected President of Iceland (1) in June 2024, the second woman in that post after Vigdis Finnbogadottir. Jose Raul Mulino (D) became President of Panama (4) in July 2024. Options (a), (b) and (d) misplace these. Concept: 2024 was a record election year, with votes in over 60 countries, including India's Lok Sabha election, in which the NDA kept power, and the US election.

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Option (a), only 2, is correct. Statement 1 is wrong: the major anti-Maoist operation of 16 April 2024, in which 29 Maoists were killed, took place in the Kalpar forests of Kanker district in Chhattisgarh, not Gadchiroli in Maharashtra. It was one of the deadliest encounters for the Maoists. Statement 2 is right: it was carried out jointly by the Border Security Force and the state's District Reserve Guard (DRG). Concept: the DRG is made up largely of local recruits, including surrendered Maoists, and knows the terrain well. The government set 31 March 2026 as the target to end Left Wing Extremism. Bastar, Sukma, Bijapur and Narayanpur are the main affected areas.

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Option (d), A true but R false, is correct. The assertion is true: India delivered the first batteries of the BrahMos shore-based anti-ship missile system to the Philippines on 19 April 2024, under a US$375 million deal signed in January 2022. It was India's first major export of the missile. The reason is false: the export version has a range of about 290 km, within the limit of the Missile Technology Control Regime for exports, not 490 km. Concept: BrahMos, a joint venture of DRDO and Russia's NPO Mashinostroyeniya, is named after the Brahmaputra and Moskva rivers. It flies at about Mach 2.8-3. Extended-range versions of about 450-500 km are used by Indian forces, and Indonesia and Vietnam have shown interest.

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Option (c), only 1, is correct. Statement 1 is right: the inauguration programme of the Kohima Peace Memorial and Eco-Park was held at Kohima, Nagaland, on 8 March 2024. The park recalls the Battle of Kohima of April-June 1944, when British and Indian forces stopped the Japanese advance into India. Statement 2 is wrong: the project is supported by Japan, through its government's grant assistance, not by South Korea. It is a gesture of peace and reconciliation. Concept: the Battles of Imphal and Kohima were voted Britain's greatest battle in a 2013 poll by the National Army Museum. The Kohima War Cemetery has the famous epitaph 'When You Go Home, Tell Them Of Us'.

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Option (d), both, is correct. Statement 1 is right: the Mobility Arrangement for Talented Early-professionals Scheme (MATES) is a bilateral framework between India and Australia, flowing from their Migration and Mobility Partnership Arrangement signed in May 2023. Statement 2 is right: it lets up to 3,000 Indian graduates aged 18 to 30, with degrees in fields such as renewable energy, mining, engineering, information technology, artificial intelligence and agricultural technology, live and work in Australia for up to two years without needing an employer sponsor. Concept: applicants must have graduated in the past two years from an eligible institution. India and Australia also signed the ECTA trade deal, in force since December 2022.

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Option (a), only 2, is correct. Statement 1 is wrong: the International Atomic Energy Agency's International Conference on Nuclear Security (ICONS 2024) was held in Vienna from 20 to 24 May 2024, not on 25 May. Statement 2 is right: India told the conference that it had reconstituted its inter-ministerial Counter Nuclear Smuggling Team (CNST) to strengthen nuclear security and coordinate against trafficking of nuclear and radioactive material. Concept: the IAEA, set up in 1957, is based in Vienna. Key treaties are the Convention on the Physical Protection of Nuclear Material and its 2005 Amendment, which India ratified, and the International Convention for the Suppression of Acts of Nuclear Terrorism.

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Option (a), only 2, is correct. Statement 1 is wrong: the three-day Nepal-India International Sanskrit Conclave was held from 27 to 29 March 2024 at Budhanilkantha in Kathmandu, Nepal, not in New Delhi. Statement 2 is right: it was organised by Nepal's Niti Anusandhan Pratisthan, a policy research foundation, together with India's Central Sanskrit University and the India Foundation of Delhi. Concept: Sanskrit links the cultural heritage of the two countries, with sites like Pashupatinath, Janakpur and Lumbini. Nepal's Mahendra Sanskrit University and India's Central Sanskrit University (made central in 2020) promote the language. Trap: a joint organiser does not mean the venue was in India.

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Option (d), both, is correct. Statement 1 is right: Tamil Nadu's School Education Department issued the Guidelines for Eliminating Corporal Punishment (GECP) on 26 April 2024 for all schools. Statement 2 is right: they focus on protecting students' physical and mental well-being, banning physical punishment, verbal abuse and mental harassment, and setting up monitoring committees and complaint channels. Concept: Section 17 of the Right to Education Act, 2009 bans physical punishment and mental harassment of children. The National Commission for Protection of Child Rights issued national guidelines in 2009. Juvenile justice laws also make cruelty to children an offence. Research shows corporal punishment harms learning and mental health.

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Option (d), both, is correct. Statement 1 is right: FLY91 is a newly launched regional airline based in Goa. Its name comes from India's international dialling code, +91. Statement 2 is right: its inaugural commercial flight took off on 18 March 2024 from Manohar International Airport at Mopa, North Goa, to Bengaluru, using ATR 72 turboprop aircraft. It focuses on connecting smaller cities under regional connectivity routes. Concept: the UDAN (Ude Desh ka Aam Nagrik) scheme, launched in 2016, supports regional air connectivity with subsidies and capped fares. Goa's older airport is Dabolim, a naval airfield. India is now the world's third-largest domestic aviation market.

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Option (a), 1 and 2, is correct. SDG 4, quality education, aims to ensure inclusive and equitable quality education and lifelong learning for all by 2030. Measure 1 fits: it calls for free, equitable primary and secondary education for all children. Measure 2 fits: it calls for building and upgrading school facilities that are safe and inclusive, and for using digital learning. Measure 3 is wrong: agricultural programmes belong to SDG 2, zero hunger. Measure 4, increasing investment in technology in general, comes under SDG 9 (industry, innovation and infrastructure), not SDG 4. Concept: India's National Education Policy 2020 and the Samagra Shiksha scheme are aligned with SDG 4. The RTE Act covers ages 6 to 14.

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Option (c), only 1, is correct. Statement 1 is right: at the 7th India-Indonesia Joint Defence Cooperation Committee meeting, the two sides agreed to step up cooperation in defence industry, maritime security and multilateral forums. It was co-chaired by the two countries' defence secretaries. Statement 2 is wrong: the meeting was held in New Delhi in early May 2024, not in Jakarta. Concept: India and Indonesia are maritime neighbours across the Andaman Sea, and they hold coordinated patrols (CORPAT) and the Samudra Shakti naval exercise. Indonesia's President Prabowo Subianto was chief guest at India's Republic Day in 2025. Indonesia has also discussed buying BrahMos missiles.

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Option (b), A-3, B-2, C-4, D-1, is correct. The India-Uzbekistan exercise Dustlik (A) was held at Termez, Uzbekistan, from 15 to 28 April 2024 (3). The India-France exercise Shakti (B) was held at Umroi, Meghalaya, from 13 to 26 May 2024 (2). The harbour phase of the India-US tri-service exercise Tiger Triumph (C) was held at Visakhapatnam from 18 to 25 March 2024 (4). MILAN 2024 (D), the Indian Navy's multilateral exercise, was held at Visakhapatnam from 19 to 27 February 2024 (1). Options (a), (c) and (d) misplace these. Concept: other exercises are Varuna (India-France navy), Garuda (air force), Yudh Abhyas (India-US army) and Malabar (Quad navies).

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Option (d), both, is the key. Statement 1 is accepted with a caveat: the Shaksgam Valley, north of the Karakoram, is a strategically important area. It was part of the Pakistan-occupied territory of Jammu and Kashmir until Pakistan ceded it to China under their 1963 boundary agreement, which India does not recognise; India regards it as its own territory. Statement 2 is right: in 2024 India lodged a protest with China over road building there. Note: calling it 'part of PoK' is loose, since China now holds it, so statement 1 is doubtful and (a) is arguable. Concept: the valley lies near the Siachen glacier, and Aksai Chin is another China-held area of Ladakh.

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Option (b), 2, 1, 3, 4, is correct. National Maritime Day is 5 April. It marks the 1919 voyage of the SS Loyalty, the first Indian-owned ship of the Scindia Steam Navigation Company, to London. World Health Day is 7 April, the founding day of the WHO in 1948. World Athletics Day is usually observed in early May (7 May is widely cited). World Red Cross Day is 8 May, the birthday of Henri Dunant, founder of the Red Cross. Options (a), (c) and (d) misorder these days. Concept: other days often tested include World Earth Day (22 April), World Book Day (23 April), Labour Day (1 May), World Press Freedom Day (3 May) and National Technology Day (11 May, marking Pokhran-II).

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Option (a), A-3, B-2, C-1, D-4, is correct. The Astronautical Society of India gave its Aryabhata Award for 2024 to Dr. Subba Rao Pavuluri, head of Ananth Technologies, for contributions to India's space industry. Kannada poet Mamta G. Sagar received the World Literary Prize 2024. Amitabh Bachchan got the Lata Deenanath Mangeshkar Award in April 2024 from the Mangeshkar family trust. Chhattisgarh activist Alok Shukla won the Goldman Environmental Prize 2024 for helping save the Hasdeo Arand forests from coal mining. Options (b), (c) and (d) mix these up. Concept: the Goldman Prize is known as the Green Nobel and goes to six grassroots activists, one from each continental region. Hasdeo Arand is a dense forest in central India.

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Option (c), Article 155 – Removal of the Governor, is the wrongly matched pair. Article 155 deals with the appointment of the Governor by the President by warrant under his hand and seal, not removal. The Constitution has no separate removal procedure: the Governor holds office during the pleasure of the President under Article 156(1). The other pairs are correct: Article 153 (a) provides for a Governor for each state; Article 154 (b) vests the state's executive power in the Governor; and Article 156 (d) fixes the term of five years. Concept: in B.P. Singhal (2010), the Supreme Court held that Governors cannot be removed arbitrarily. Article 157 sets qualifications, and Article 163 covers the council of ministers.

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Option (a), both, is correct. Statement 1 is right: Article 59(1) says the President shall not be a member of either House of Parliament or of a state legislature, and if such a member is elected President, the seat is vacated from the day the President enters office. Statement 2 is right: Article 79 says Parliament consists of the President and the two Houses, the Council of States (Rajya Sabha) and the House of the People (Lok Sabha). Options (b), (c) and (d) fail. Concept: the President is part of Parliament because bills need assent (Article 111), and the President summons and prorogues the Houses and can dissolve the Lok Sabha (Article 85). The same model follows Britain's 'Crown in Parliament'.

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Option (b), 1 and 2, is correct. Under Article 368, an amendment to the Constitution can be initiated only by introducing a Bill in either House of Parliament, the Lok Sabha (1) or the Rajya Sabha (2), by a minister or a private member, and without the President's prior permission. Statement 3 is wrong: state legislatures cannot initiate amendments; they only ratify some, such as those affecting federal features, by half of the states. Statement 4 is wrong: the President only gives assent, which became compulsory after the 24th Amendment (1971). Concept: there is no joint sitting for amendment bills. In Kesavananda Bharati (1973), the Supreme Court held that Parliament cannot alter the basic structure.

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Option (d), none of the above, is correct. Statement 1 is wrong: the Speaker and Deputy Speaker of the Lok Sabha and the Deputy Chairman of the Rajya Sabha are elected by the members of the House themselves, under rules of procedure, not by the Election Commission. Statement 2 is wrong: elections to municipalities and panchayats are conducted by State Election Commissions under Articles 243K and 243ZA. Statement 3 is wrong: election disputes are decided by courts through election petitions, mainly in High Courts. Concept: under Article 324, the ECI conducts elections to Parliament, state legislatures and the offices of President and Vice-President. The Chief Election Commissioner and Other Election Commissioners Act, 2023 changed how they are appointed.

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Option (c), Santhanam Committee – Panchayati Raj finances, is the official key for the wrong pair. But the Santhanam Committee (1963) did study Panchayati Raj finances, so this pair is correct on the facts. The real mismatches seem to be elsewhere. The G.V.K. Rao Committee (1985) (a) dealt with administrative arrangements for rural development and Panchayati Raj, while block-level planning was the subject of the Dantwala Committee (1978). The Dantwala Committee (b) dealt with block-level planning, not rural credit. The Ashok Mehta Committee (1977-78) (d) is correct for Panchayati Raj institutions. Note: the key is doubtful, and (a) or (b) seems the better answer. Concept: the 73rd Amendment (1992) followed the L.M. Singhvi Committee (1986).

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Option (b), freedom to own, acquire and dispose of property, is correct, because it is no longer guaranteed by Article 19. Article 19(1)(f), the right to acquire, hold and dispose of property, was deleted by the 44th Amendment (1978), along with Article 31. Property is now only a constitutional legal right under Article 300A, so a person can be deprived of property only by authority of law. Options (a), (c) and (d) remain: freedom to assemble peacefully and without arms is in Article 19(1)(b), to move freely in 19(1)(d), and to practise any profession, trade or business in 19(1)(g). Concept: Article 19 now has six freedoms; 19(1)(e) covers residence and settlement anywhere in India.

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Option (b), A false but R true, is correct. The assertion is false: the Constitution does allow the same person to be Governor of two or more States at the same time. The proviso to Article 153, added by the 7th Amendment (1956), says nothing prevents one person from being appointed Governor of two or more States. The reason is true: Article 153 does say there shall be a Governor for each State. Concept: in practice, one Governor often holds additional charge of a neighbouring state. When one person is Governor of more than one state, Article 158(3A) says the emoluments are shared among the states as the President decides. Article 155 covers appointment, and Article 156 the five-year term.

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Option (d), altering the name of a State – power of a State Legislature, is the wrongly matched pair. Under Article 3, Parliament alone can, by law, form new States, change State boundaries or alter a State's name. The bill needs the President's recommendation, and the State Legislature concerned is only consulted; its views are not binding. The other pairs are correct: equality before law under Article 14 (a) applies to all persons, citizens and non-citizens; equality of opportunity in public employment under Article 16 (b) is only for citizens; and creating a new State (c) is Parliament's power. Concept: Orissa became Odisha in 2011 by a law of Parliament. Such laws are not amendments under Article 368 (Article 4).

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Option (c), A-1, B-3, C-2, D-4, is correct. The Consolidated Fund of India (A) is set up by Article 266 (1); all revenues and loans of the Union go into it, and no money can be withdrawn without a law of Parliament. The Finance Commission (B) is under Article 280 (3), appointed every five years to recommend tax sharing. A financial emergency (C) can be proclaimed under Article 360 (2), though it has never been used. The Comptroller and Auditor General (D) is under Article 148 (4). Options (a), (b) and (d) misplace these. Concept: the Contingency Fund is under Article 267 and the Public Account under Article 266(2). The 16th Finance Commission, chaired by Arvind Panagariya, covers 2026-31.

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Option (a), 2 and 3, is correct. The Right against Exploitation is in Articles 23 and 24. Article 23 prohibits traffic in human beings, begar and other forced labour (2). Article 24 prohibits employing children below 14 in factories, mines or other hazardous work (3). Statement 1 is wrong: abolition of untouchability is Article 17, under the Right to Equality. Statement 4 is wrong: protection of minority interests is in Articles 29 and 30, under Cultural and Educational Rights. Concept: Articles 17, 23 and 24 apply even against private persons. The Bonded Labour System (Abolition) Act, 1976 and the Child Labour (Prohibition and Regulation) Amendment Act, 2016 enforce them, and the Immoral Traffic Act deals with trafficking.

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Option (a), both true but R does not explain A, is correct. The assertion is true: Article 352 lets the President proclaim a national emergency if the security of India is threatened by war, external aggression or armed rebellion, on the written advice of the Union Cabinet. The reason is also true: such a threat can arise at any time, and the proclamation can even be made before the actual event if the danger is imminent. But that general fact does not explain what Article 352 provides, so R is not the explanation. Concept: national emergency was declared in 1962 (China), 1971 (Pakistan) and 1975 (internal disturbance). The 44th Amendment (1978) replaced 'internal disturbance' with 'armed rebellion'.

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Option (b), 2 and 3, is correct. Statement 2 is right: ICT-based e-governance lowers the cost of government by cutting paperwork, travel, middlemen and processing time. Statement 3 is right: it increases citizens' input through online feedback, grievance portals like CPGRAMS, and platforms such as MyGov. Statement 1 is wrong: e-governance increases transparency by putting information, decisions and service status online. Statement 4 is wrong: it is meant to reduce red tape, not add to it. Concept: India's National e-Governance Plan (2006) and Digital India (2015) built services like DigiLocker, UMANG, the Aadhaar-based direct benefit transfer and the GeM portal. The four models are G2C, G2B, G2G and G2E.

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Option (d), 1, 2, 3 and 4, is correct. The UPSC's functions come from four sources. The Constitution (1) sets out its core functions in Article 320, such as holding examinations for the all-India and central services and advising on recruitment, promotions and discipline. Parliamentary laws (2) can give it more functions under Article 321. Executive rules and orders (3), such as the UPSC (Exemption from Consultation) Regulations, 1958, decide when it must be consulted. Conventions (4) also shape its advisory role. Options (a), (b) and (c) are incomplete. Concept: the UPSC is a constitutional body under Articles 315-323. Its advice is not binding on the government, but departures must be reported to Parliament.

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Option (d), National Commission for Backward Classes – 340, is the key. Article 340 lets the President appoint a commission to investigate the conditions of backward classes, the basis of the Kaka Kalelkar (1953) and Mandal (1979) commissions. But the present National Commission for Backward Classes is under Article 338B, added by the 102nd Amendment (2018), so this pair is only loosely correct. Option (a) is wrong: the Election Commission is under Article 324; Article 165 is the Advocate General. Option (b) is wrong: the NCSC is under Article 338; Article 148 is the CAG. Option (c) is wrong: the Finance Commission is under Article 280; Article 263 is the Inter-State Council. Note: the key is accepted only by elimination.

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Option (c), 1, 2, 3, 4, is correct. Shankari Prasad (1951) upheld the First Amendment and held that Parliament could amend Fundamental Rights under Article 368. Sajjan Singh (1965) repeated that view for the 17th Amendment. Golaknath (1967) reversed course and held that Parliament could not abridge Fundamental Rights. Kesavananda Bharati (1973), decided by a 13-judge bench, overruled Golaknath but laid down that Parliament cannot alter the basic structure. Options (a), (b) and (d) jumble this sequence. Concept: the story runs from unlimited power, to no power over rights, to the basic structure limit. Later cases built on it: Indira Gandhi vs Raj Narain (1975), Minerva Mills (1980) and Waman Rao (1981), which fixed 24 April 1973 as the cut-off for Ninth Schedule laws.

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Option (d), A-3, B-1, C-4, D-2, is correct. The 42nd Amendment (1976), passed during the Emergency, is called the mini-Constitution; it added socialist, secular and integrity to the Preamble and inserted Fundamental Duties. The 52nd Amendment (1985) added the Tenth Schedule, the anti-defection law. The 86th Amendment (2002) inserted Article 21A, making education for children aged 6-14 a Fundamental Right, along with Article 51A(k). The 96th Amendment (2011) changed Oriya to Odia in the Eighth Schedule. Options (a), (b) and (c) misplace these years. Concept: the 91st Amendment (2003) tightened anti-defection by removing the split exception and capping ministries at 15%. The Right of Children to Free and Compulsory Education Act came in 2009 and took effect in 2010.

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Option (c), A-4, B-3, C-1, D-2, is correct. Granville Austin called Indian federalism cooperative federalism, stressing working partnership between Centre and States. W.H. Morris-Jones described it as bargaining federalism, in which Centre and States constantly negotiate. K.C. Wheare called the Constitution quasi-federal: a unitary state with subsidiary federal features. Sir Ivor Jennings saw it as a federation with a strong centralising tendency. Options (a), (b) and (d) mix up these labels. Concept: other descriptions include Paul Appleby's extremely federal and Ambedkar's view that it could be unitary or federal as times required. In S.R. Bommai (1994) the Supreme Court held federalism to be part of the basic structure. Trap: Wheare = quasi-federal and Austin = cooperative are the most often tested pairs.

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Option (d), Nyaya Panchayat, is correct. The Balwant Rai Mehta Committee (1957) recommended democratic decentralisation through three tiers: gram panchayat at village level (b), panchayat samiti at block level (a), and zila parishad at district level (c). It made the panchayat samiti the key executive body. Nyaya panchayats are village-level dispute bodies and were never a tier of this structure. Concept: Rajasthan (Nagaur, 2 October 1959) was the first to adopt the scheme, followed by Andhra Pradesh. The Ashok Mehta Committee (1978) suggested two tiers instead, with the zila parishad as the executive body. The 73rd Amendment (1992) made the three tiers constitutional, but states with population below 20 lakh may skip the intermediate tier.

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Option (d), 1, 3 and 4, is correct. Under Section 4 of the Lokpal and Lokayuktas Act, 2013, the selection committee has five members: the Prime Minister as chairperson, the Speaker of the Lok Sabha (3), the Leader of Opposition in the Lok Sabha (4), the Chief Justice of India or a Supreme Court judge nominated by him (1), and an eminent jurist nominated by the President on the others' recommendation. The Chairman of the Rajya Sabha (2) is not a member, so options (a), (b) and (c) are wrong. Concept: where there is no recognised Leader of Opposition, the leader of the largest opposition party is included. Justice Pinaki Chandra Ghose became the first Lokpal in March 2019. The Lokpal has a chairperson and up to eight members, half of them judicial.

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Option (b), neither 1 nor 2, is correct. Statement 1 is wrong: Article 350B provides for one Special Officer for Linguistic Minorities, appointed by the President, for the whole country, not one for each State. The officer investigates safeguards for linguistic minorities and reports to the President, who places the reports before Parliament and sends them to the State governments. Statement 2 is wrong: Article 350B was inserted by the 7th Amendment (1956), on the advice of the States Reorganisation Commission, not by the 9th Amendment. Concept: the office is the Commissioner for Linguistic Minorities, under the Ministry of Minority Affairs, with its headquarters at Allahabad (Prayagraj). Article 350A covers primary education in the mother tongue. The 9th Amendment (1960) dealt with the Berubari transfer.

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Option (d), 2 and 3, is correct. The Concurrent List (List III, Seventh Schedule) includes adulteration of foodstuffs and other goods (Entry 18) and succession, along with marriage, divorce, wills and adoption (Entry 5). Trade and commerce within a State is a State subject (List II, Entry 26), while inter-State trade and commerce is a Union subject (List I, Entry 42). Only trade in certain controlled products is concurrent (Entry 33), so statement 1 as a general item is wrong, which rules out options (a), (b) and (c). Concept: the 42nd Amendment moved five subjects to the Concurrent List: education, forests, weights and measures, protection of wild animals and birds, and administration of justice. Under Article 254, a Union law prevails over a conflicting State law.

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Option (b), 1 and 3, is correct. Justice M. Fathima Beevi, who died in November 2023, became the first woman judge of the Supreme Court in 1989 (statement 1). She was also the first Muslim woman in the higher judiciary, and the first woman judge of a supreme court in Asia (statement 3). Statement 2 is wrong: she was Governor of Tamil Nadu, not Kerala, from 1997 to 2001. Her term was controversial, including the decision to swear in J. Jayalalithaa as Chief Minister in 2001. Concept: she was later a member of the NHRC and received the Padma Bhushan posthumously in 2024. Justice B.V. Nagarathna is in line to be India's first woman Chief Justice in 2027. Trap: the State she governed was Tamil Nadu.

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Option (d), the 73rd and 74th Amendment Acts, is correct. The 73rd Amendment (1992) added Part IX (Articles 243 to 243-O) and the Eleventh Schedule with 29 subjects for panchayats. The 74th Amendment added Part IXA (Articles 243P to 243ZG) and the Twelfth Schedule with 18 subjects for municipalities. Both came into force in 1993 (24 April and 1 June). Option (a) is wrong: the 63rd and 64th dealt with Punjab. Option (b) is wrong: the 86th is about education and the 87th about delimitation. Option (c) is wrong: the 42nd and 43rd are Emergency-era amendments. Concept: 24 April is National Panchayati Raj Day. Both amendments require one-third reservation for women, State Election Commissions and State Finance Commissions.

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Option (a), both, is correct. Statement 1 is right: scientific investigation is driven by commitment to practical, testable aims, such as solving problems through observation, experiment and evidence. Statement 2 is right: honesty is especially important in science, because researchers must record and report data truthfully so that others can check and repeat results. Fabrication, falsification and plagiarism are the main forms of scientific misconduct. Options (b), (c) and (d) fail. Concept: Robert Merton's norms of science are communalism, universalism, disinterestedness and organised scepticism. Peer review and reproducibility guard against error and fraud. The scientific method moves from hypothesis to experiment, analysis and conclusion.

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Option (d), Plant Kingdom – Phylum – Class – Order, is correct. The taxonomic hierarchy runs from the broadest to the narrowest group: Kingdom, Phylum (called Division in plants), Class, Order, Family, Genus and Species. So from higher to lower the order is Plant Kingdom, Phylum, Class, Order. Options (a), (b) and (c) are wrong because they put lower categories above higher ones. Concept: Carl Linnaeus, the father of taxonomy, set up binomial nomenclature, with a genus and species name, such as Mangifera indica for mango. Robert Whittaker's five-kingdom system (1969) has Monera, Protista, Fungi, Plantae and Animalia. Domains, by Carl Woese, sit above kingdoms.

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Option (a), a malaria vaccine developed by the Serum Institute of India, is correct. R21/Matrix-M was developed by the University of Oxford's Jenner Institute and is manufactured at scale by the Serum Institute of India in Pune, with Novavax's Matrix-M adjuvant to boost the immune response. The WHO recommended it in October 2023 and prequalified it in December 2023. It is the second malaria vaccine after RTS,S (Mosquirix) by GSK, but is cheaper and easier to make in large volumes. Options (b), (c) and (d) are wrong: it is not by Bharat Biotech and is not an AIDS vaccine. Concept: malaria is caused by the Plasmodium parasite. African countries began routine use of R21 in 2024.

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Option (b), neither, is correct. Statement 1 is wrong: Rudram-II is an indigenous air-to-surface, anti-radiation missile developed by DRDO, designed to destroy enemy radars, communication sites and other ground targets. It is not an air-to-air missile. Statement 2 is wrong: it was flight-tested from a Su-30MKI fighter of the Indian Air Force off the Odisha coast on 29 May 2024, not in Rajasthan. Concept: Rudram-I, India's first indigenous anti-radiation missile, was tested in 2020. India's air-to-air missiles include Astra, a beyond-visual-range missile. The DRDO's Integrated Test Range at Chandipur and Abdul Kalam Island in Odisha host most missile tests.

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Option (a), pivotal joint, is correct. The joint between the first vertebra (atlas) and the second vertebra (axis) is a pivot joint. A peg on the axis (the dens or odontoid process) fits in a ring of the atlas, letting the head turn from side to side, as in saying 'no'. Option (b), a saddle joint, is at the base of the thumb. Option (c), a hinge joint, is at the elbow and knee, allowing movement in one plane. Option (d), a ball and socket joint, is at the shoulder and hip, allowing movement in all directions. Concept: the nodding movement, as in saying 'yes', happens at the joint between the skull and the atlas, a condyloid joint. The radio-ulnar joint is another pivot joint.

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Option (b), pathogens, is correct. A pathogen is by definition any organism or agent that causes disease, such as certain bacteria, viruses, fungi, protozoa and worms. Options (c) and (d), bacteria and protozoa, include disease-causing species, like Mycobacterium tuberculosis and Plasmodium, but most of their species are harmless or useful, like gut bacteria and Lactobacillus in curd. Option (a), archaea, are single-celled organisms often found in extreme habitats such as hot springs and salt lakes, and none is known to cause disease in humans. Concept: Louis Pasteur and Robert Koch developed the germ theory of disease. Koch's postulates set out how to prove a microbe causes a disease. Virulence is a pathogen's degree of harm.

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Option (d), emulsion, is correct. Milk is a colloid of fat droplets dispersed in water, that is, a liquid dispersed in a liquid, which makes it an emulsion of the oil-in-water type. The protein casein helps keep the fat droplets suspended. Option (a), a foam, is a gas in a liquid, as in shaving cream or whipped cream. Option (b), a sol, is a solid in a liquid, as in paint or ink. Option (c), an aerosol, is a liquid or solid in a gas, as in fog, mist or smoke. Concept: butter is a water-in-oil emulsion. Colloids show the Tyndall effect, scattering light, and particles of 1 to 1,000 nm. Homogenisation breaks fat droplets smaller so that cream does not separate.

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Option (d), NaHCO₃, is correct. Baking soda is sodium hydrogen carbonate, also called sodium bicarbonate, NaHCO₃. When heated or mixed with an acid, it releases carbon dioxide, which makes cakes and bread rise; baking powder is baking soda mixed with a mild acid such as tartaric acid. Option (a), KHCO₃, is potassium bicarbonate. Option (b), Na₂CO₃, is sodium carbonate; its hydrated form Na₂CO₃·10H₂O is washing soda. Option (c), K₂CO₃, is potassium carbonate, or potash. Concept: baking soda is also an antacid, neutralising excess stomach acid, and is used in soda-acid fire extinguishers. Washing soda and baking soda are both made by the Solvay process.

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Option (c), cardiopulmonary resuscitation, is correct. CPR is an emergency procedure for someone whose heart has stopped (cardiac arrest). It uses chest compressions, about 100-120 a minute pressed 5-6 cm deep at the centre of the chest, with or without rescue breaths, to keep oxygenated blood flowing to the brain until the heart can be restarted. Options (a), (b) and (d) are made-up expansions. Concept: an automated external defibrillator (AED) can restore a normal heart rhythm. Starting CPR quickly can double or triple survival chances. 'Hands-only CPR' is recommended for untrained bystanders. Cardiac arrest is an electrical problem, while a heart attack is a blocked artery.

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Option (a), the pulmonary vein, is correct. The four pulmonary veins carry oxygen-rich blood from the lungs to the left atrium of the heart. They are the only veins in the adult body that carry oxygenated blood. Option (b), the cystic vein, drains the gall bladder. Option (c), the cardiac veins, drain the heart muscle into the coronary sinus. Option (d), the hepatic portal vein, carries nutrient-rich but deoxygenated blood from the gut to the liver. Concept: in the same way, the pulmonary artery is the only artery that carries deoxygenated blood, from the right ventricle to the lungs. Before birth, the umbilical vein carries oxygenated blood from the placenta to the foetus.

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Option (d), the pancreas, is correct. Diabetes mellitus results from too little insulin or poor response to it. Insulin is made by the beta cells of the islets of Langerhans in the pancreas, so diabetes is the most common disorder linked with this organ. Option (a), the kidney, is often damaged by long-term diabetes (diabetic nephropathy), but is not the source. Option (b), the gall bladder, stores bile and is linked with gallstones. Option (c), the liver, stores glycogen and suffers from hepatitis and fatty liver. Concept: type 1 diabetes is autoimmune, type 2 involves insulin resistance, and gestational diabetes occurs in pregnancy. Diabetes insipidus is a different disorder, caused by lack of ADH from the pituitary.

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Option (c), SARS-CoV-2, is correct. COVID-19, which the WHO declared a pandemic in March 2020 and which led to worldwide lockdowns, is caused by the coronavirus SARS-CoV-2, first identified in Wuhan, China, in December 2019. Option (a), SARS-CoV-1, caused the 2002-03 SARS outbreak. Option (b), H5N1, is the bird flu virus, an influenza A virus. Option (d) is wrong: MERS, the Middle East Respiratory Syndrome first found in 2012, is caused by MERS-CoV, and there is no 'MERS-CoV-2'. Concept: the WHO ended COVID-19's status as a global health emergency in May 2023. Its spike protein binds ACE2 receptors on cells, and variants included Delta and Omicron.

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Option (b), 2v₁v₂ / (v₁ + v₂), is correct. If each half of the distance is d, the total distance is 2d. The time for the first half is d/v₁ and for the second d/v₂, so the total time is d(v₁ + v₂)/v₁v₂. Average speed equals total distance divided by total time, which gives 2v₁v₂/(v₁ + v₂), the harmonic mean of the two speeds. Option (c), (v₁ + v₂)/2, the arithmetic mean, applies only when equal times, not equal distances, are spent at each speed. Option (d), the geometric mean, and option (a), half the correct value, do not fit. Concept: for example, at 40 and 60 km/h over equal distances the average is 48 km/h, not 50. Trap: the arithmetic mean is the common mistake.

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Option (d), both, is correct. Statement 1 is right: PraVaHa, which stands for Parallel RANS Solver for Aerospace Vehicle Aero-thermo-dynamic Analysis, is a computational fluid dynamics software developed at ISRO's Vikram Sarabhai Space Centre in Thiruvananthapuram. Statement 2 is right: it was built because the early aerodynamic design of launch vehicles and re-entry vehicles requires testing a very large number of configurations, which would be slow and costly in wind tunnels alone. Concept: PraVaHa can simulate airflow around launch vehicles, winged bodies and re-entry capsules, and it was used for the Gaganyaan programme's human-rated launch vehicles. It runs on parallel CPU and GPU computers.

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Option (c), only 1, is correct. Statement 1 is right: the Lunar Polar Exploration Mission (LUPEX), also called Chandrayaan-5, is a planned joint mission of India's ISRO and Japan's JAXA to study water ice and other volatiles in the Moon's south polar region. Statement 2 is wrong: ISRO is responsible for the lander, while JAXA provides the H3 launch vehicle and the rover, so the statement reverses their roles. Concept: India's Chandrayaan-3 landed near the lunar south pole on 23 August 2023, now National Space Day, at the Shiv Shakti point. Chandrayaan-4 is planned as a sample-return mission. NASA's Artemis programme also targets the south polar region because of its permanently shadowed craters.

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Option (d), mouse, keyboard, scanner, is correct. All three are input devices, which feed data and commands into a computer. The mouse points and clicks, the keyboard enters text, and the scanner converts printed pages and images into digital form. Option (a) is wrong because a printer is an output device that produces hard copies. Option (b) is wrong because a projector displays output on a screen. Option (c) is wrong because a monitor shows output. Concept: other input devices are the microphone, webcam, joystick, light pen, barcode reader and biometric scanner. A touchscreen is both input and output. Speakers and plotters are output devices. Storage like hard disks and pen drives is both.

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Option (c), ROM, is correct. Read-only memory (ROM) is non-volatile: it keeps its contents even when the power is switched off. That is why it stores firmware, such as the BIOS or UEFI that starts a computer. Option (b), RAM, random access memory, is volatile; it holds running programs and data but loses them when power is cut. Option (a), 'REM', is not a computer memory type. Option (d) is wrong because (c) is correct. Concept: types of ROM include PROM, EPROM, erased by ultraviolet light, and EEPROM, erased electrically. Flash memory, used in pen drives and SSDs, is a non-volatile EEPROM type. Cache memory is a fast form of RAM near the processor.

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Option (c), °F = (9/5)°C + 32, is correct. Water freezes at 0°C, which is 32°F, and boils at 100°C, which is 212°F. So 100 Celsius degrees equal 180 Fahrenheit degrees, a ratio of 9/5, with an offset of 32. Hence °F = (9/5)°C + 32, or °C = (5/9)(°F − 32). Option (a) is wrong: it puts the Fahrenheit value in the Celsius formula. Options (b) and (d) are wrong: subtracting or adding 273.15 converts between Celsius and kelvin, not Fahrenheit. Concept: the two scales meet at −40°, where °C equals °F. Normal body temperature is about 37°C, or 98.6°F. Absolute zero is 0 K, or −273.15°C. The kelvin is the SI unit of temperature.

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Option (b) is the untrue statement. The nucleus holds the chromosomes and directs cell division, both mitosis, for growth and repair, and meiosis, for forming gametes. So it is central to cellular reproduction. The other statements are true. Chromosomes (a) are made of DNA wound around histone proteins, forming chromatin. They carry the hereditary information (c) passed from parents to offspring. A gene (d) is a functional segment of DNA that codes for a protein or RNA. Concept: humans have 23 pairs of chromosomes, including one pair of sex chromosomes. Mitochondria and chloroplasts also have their own DNA. Robert Brown discovered the nucleus in 1831, and Watson and Crick described the DNA double helix in 1953.

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Option (d), both, is correct. Statement 1 is right: the FWD-200B, unveiled in 2024 by the Bengaluru-based firm Flying Wedge Defence and Aerospace, was described as India's first indigenous bomber unmanned aerial vehicle. It is a medium-altitude long-endurance drone designed for surveillance and precision strikes. Statement 2 is right: it can carry a payload of about 100 kg of weapons or sensors. Concept: India is promoting home-grown drones under Atmanirbhar Bharat, with a ban on most foreign drone imports since 2022 and a production-linked incentive scheme. Other Indian UAVs include DRDO's Rustom and TAPAS and the Ghatak stealth drone project. India has also bought MQ-9B drones from the US.

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Option (b), A-2, B-1, C-4, D-3, is correct. Vitamin A deficiency causes night blindness and xerophthalmia, which can lead to blindness. Vitamin B1 (thiamine) deficiency causes beriberi, common where people eat polished rice. Vitamin C (ascorbic acid) deficiency causes scurvy, with bleeding gums. Vitamin D deficiency causes rickets in children and osteomalacia in adults. Options (a), (c) and (d) mismatch these. Concept: other deficiencies tested are B3 niacin (pellagra), B12 (pernicious anaemia), folic acid B9 (neural tube defects) and vitamin K (poor blood clotting). Vitamins A, D, E and K are fat-soluble, while B and C are water-soluble. Trap: 'Vitamin B' here means B1, thiamine; B12 is linked to anaemia, not beriberi.

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Option (a), the dam's length of 825.8 m, is the key for the wrongly matched pair. The Ramganga multipurpose project at Kalagarh in Pauri Garhwal, Uttarakhand (c), was built by Uttar Pradesh and completed in 1974-75. It has a 198 MW power house of three 66 MW units (b), and project reports put its irrigation benefit at about 5.75-6 lakh hectares in western Uttar Pradesh (d). Its main earth-and-rockfill dam is about 128 m high and usually given as about 630 m long, so the 825.8 m figure is the mismatch. Concept: the reservoir lies within Corbett National Park and attracts many birds. Western UP's other irrigation sources are the Upper and Lower Ganga canals and the Eastern Yamuna Canal.

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Option (d), both, is correct. Statement 1 is right: the 'Pirul Lao, Paise Pao' (bring pine needles, get money) campaign aims to reduce forest fires, since dry chir pine needles, or pirul, are highly flammable and spread fires, and also to give villagers an income. Villagers collect pirul and sell it at collection centres for ₹50 a kg. Statement 2 is right: Uttarakhand Chief Minister Pushkar Singh Dhami launched the campaign in May 2024, after severe forest fires that season. Concept: the collected needles are used for briquettes, pellets and bio-energy. Uttarakhand's chir pine forests cover a large area of the middle Himalaya, and fire season peaks in April-June.

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Option (b), A-2, B-1, C-3, D-4, is the key. Compilations of state capital spending for 2019-20 to 2022-23 rank Uttar Pradesh first (1), with about ₹5.3 lakh crore, Maharashtra second (2), with about ₹4.4 lakh crore, Tamil Nadu third (3) and Karnataka fourth (4), both near ₹2.8 lakh crore. Options (a), (c) and (d) misplace these. Note: Tamil Nadu and Karnataka are very close, and rankings vary by source and by what counts as infrastructure, so the C-D order is somewhat doubtful. Concept: capital expenditure creates assets like roads, power and irrigation and has a larger multiplier than revenue spending. The Centre's 50-year interest-free loans to States since 2020-21 support such spending.

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