UPSC Mains 2017 GS Paper 3 Q4: model answer
Explain various types of revolutions, took place in Agriculture after independence in India. How these revolutions have helped in poverty alleviation and food security in India?
What the question wants
Explain the agricultural 'revolutions' since independence and how they helped poverty reduction and food security.
How to structure it
List, then link.
- Green
- White
- Blue and others
- Poverty effect
- Food security effect
- Limits
How to think it through
Green (wheat and rice, 1960s), White (milk, Operation Flood, 1970), Blue (fish), Yellow (oilseeds, 1986), Golden (horticulture and honey), Pink (meat), Silver (eggs), Round (potato). Effects: food self-sufficiency, cheaper grain, buffer stocks for PDS, rural jobs. Limits: regional bias, ecological cost.
Model answer
In 1966 India imported over 10 million tonnes of grain. Today it is a leading rice exporter. That change came through a series of farm 'revolutions'.
The revolutions
- Green (1960s): high-yielding wheat and rice, irrigation and fertiliser; M.S. Swaminathan and Norman Borlaug.
- White (from 1970): Operation Flood, led by Verghese Kurien, made India the largest milk producer.
- Blue: fisheries; now the Blue Revolution scheme and PMMSY.
- Yellow (1986): Technology Mission on Oilseeds.
- Golden: horticulture and honey; Silver: eggs; Pink: meat and poultry.
Effect on poverty
- Cheaper grain and higher farm wages in irrigated regions.
- Dairy gave landless and women regular income.
- Cheap food lifted real wages of urban workers too.
Effect on food security
- Buffer stocks that support the PDS and the NFSA.
- Diverse sources of protein through milk, eggs and fish.
Limits
- Gains were concentrated in Punjab, Haryana and western UP; rainfed eastern India and pulses were left behind.
- They cost soil health and groundwater, and pushed a cereal-heavy diet.
The revolutions filled India's granary; the next one has to fill its plate with nutrition.
Draw: A rainbow strip with each colour labelled by product and year.
Keywords, cases and data to drop in
Green Revolution, HYV, Operation Flood, Verghese Kurien, Blue Revolution, PMMSY, TMO 1986, NFSA, buffer stock.
Where most answers lose marks
- Listing colours without linking them to poverty and food security.
Related Mains PYQs
- Describe the various Technology Missions initiated in Indian agriculture and examine their role in food security. UPSC 2026 · GS-III
- How Indian agriculture has been transformed from food scarcity to food surplus level? Explain the various government policies implemented for diversification of… UPSC 2026 · GS-III
- Analyze the role of satellite-based technologies in achieving climate-smart agriculture and food security in India. UPSC 2026 · GS-I
- Explain the factors influencing the decision of the farmers on the selection of high value crops in India. UPSC 2025 · GS-III
Fresh examples from current affairs

11 crore Farmer IDs created five months early under the Digital Agriculture Mission and Agri Stack
The Centre is building a digital register of farmers, so that each farmer has one verified identity for all schemes. Under the Digital Agriculture Mission, 11 crore Farmer IDs were created by the night of 23 October, five months before the March 2027 deadline. With this ID, farmers need not submit the same papers again and again for loans, crop insurance or relief. For you, this links Agri Stack, the Kisan Credit Card, PMFBY and land-record reform.
UPSC angle: Prelims: Digital Agriculture Mission, Agri Stack, KCC, PMFBY, DILRMP. · Mains GS-III: technology in agriculture; DBT.
25 Oct 2026
Agrivoltaics World Conference in Delhi: PM-KUSUM’s next phase and the small-farmer test
Opening the 7th Agrivoltaics World Conference at Bharat Mandapam on 21 October 2026, the first in the Global South, Renewable Energy Minister Pralhad Joshi said the next phase of PM-KUSUM will carry one of the world’s most ambitious agrivoltaics programmes. Agriculture Minister Shivraj Singh Chouhan said the policy must work for the 85% of farmers who are small and marginal, with an average holding of just 0.96 hectare.
UPSC angle: Prelims: PM-KUSUM, TERI estimate, capacity numbers. · Mains GS-III: land-energy-food nexus.
22 Oct 2026
Agrivoltaics: Centre plans a scheme to push solar panels above farms; 5 GW seen in 3–4 years
MNRE Secretary Santosh Kumar Sarangi said on 19 October 2026 that the Centre is planning a central sector scheme to help States adopt agrivoltaics, either standalone or within PM-KUSUM 2.0. He expects capacity to cross 5 GW in three to four years if States notify feed-in tariffs. India hosts the 7th Agrivoltaics World Conference in New Delhi from 21 to 23 October.
UPSC angle: Prelims: agrivoltaics, PM-KUSUM components, feed-in tariffs. · Mains GS-III: energy transition and food security.
20 Oct 2026
Kufri Jamunia: ICAR-CPRI’s purple potato to fight hidden hunger
A PIB backgrounder of 18 October 2026 puts the spotlight on Kufri Jamunia, a purple-fleshed potato bred by ICAR’s Central Potato Research Institute and released in 2024. It has nearly twice the Vitamin C of a common potato and several times more zinc and iron, along with antioxidants called anthocyanins. The idea is clever: instead of asking people to change what they eat, make the food they already eat more nutritious. That is biofortification.
UPSC angle: Prelims: Kufri Jamunia, CPRI, anthocyanins, biofortification vs fortification. · Mains GS-III: nutrition security; GS-II: hunger.
18 Oct 2026Learn the concept
Question text as printed in the official UPSC Civil Services (Main) question paper. The model answer is original Battle IAS work; use it to learn structure, not to memorise.
Want every PYQ in one place? See the Battle IAS PYQ Book.