Delimitation in India: Articles 82 and 170, Four Commissions, the Seat Freeze and the North-South Debate (UPSC Notes + PYQs)

Background: one person, one vote

Delimitation means fixing the number of seats and the boundaries of constituencies so that each seat represents roughly the same number of people. Without it, a voter in a fast-growing city would count for less than a voter in a shrinking rural district. Article 82 requires the readjustment of Lok Sabha seats and constituencies after every census, and Article 170 does the same for State Legislative Assemblies. Delimitation Commissions were set up under Acts of Parliament in 1952, 1963, 1973 and 2002. Their orders have the force of law and cannot be questioned in any court, under Article 329(a), as the Supreme Court confirmed in Meghraj Kothari (1967). This finality ensures that elections are not stalled by endless litigation over boundaries.

Who does it

Parliament passes a Delimitation Act; the Centre appoints a Commission, usually headed by a retired Supreme Court judge, with the Chief Election Commissioner and State Election Commissioners. Its orders have the force of law and cannot be questioned in any court (Art. 329(a)). They are laid before the Lok Sabha and Assemblies, which cannot modify them.

The freeze

• 42nd Amendment (1976): froze inter-State allocation of seats at the 1971 census until 2000, so States that controlled population would not lose seats.
• 84th Amendment (2001): extended the freeze to the first census after 2026, but allowed boundaries to be redrawn within States on the 2001 census.
• 87th Amendment (2003): boundaries readjusted on 2001 census figures; SC/ST seats recalculated.

The 2002 Commission

Headed by Justice Kuldip Singh, it redrew constituency boundaries without changing State totals; its orders came into effect for the 2008 Karnataka and later elections. Separate exercises: Jammu and Kashmir (Justice Ranjana Desai, 2022) and Assam (by the Election Commission, 2023).

The coming round and the North-South debate

If seats were reallocated purely on current population, Uttar Pradesh, Bihar, Rajasthan and Madhya Pradesh would gain heavily while Tamil Nadu, Kerala and Andhra Pradesh would gain little or lose share. Southern States call this a penalty for success in population control. Options under discussion: keep the State share frozen and raise total seats, use a weighted formula, or strengthen the Rajya Sabha’s federal role. The new Parliament chamber seats 888, hinting at a larger Lok Sabha.

Delimitation Commissions so far

Link with women’s reservation

The Constitution (106th Amendment) Act, 2023 reserves one-third of Lok Sabha and Assembly seats for women, but only after delimitation based on the first census after the Act. So the timing of the census and of delimitation decides when the reservation begins.

Composition and working of the Commission

A Delimitation Commission is a high-powered body. It is usually chaired by a retired Supreme Court judge and includes the Chief Election Commissioner or an Election Commissioner nominated by the CEC, and the State Election Commissioners of the States concerned. Five MPs and five MLAs from each State are associate members; they take part in discussions but do not vote. The Commission publishes draft proposals in the Gazette and in local newspapers, holds public sittings in each State, considers objections, and then issues final orders. Its guiding principles include compact geographic areas, physical features, administrative boundaries, ease of communication and public convenience, and keeping each constituency within a single district where possible.

Arguments in the North-South debate

Options discussed include raising the total number of seats so that no State loses seats, giving more weight to the Rajya Sabha as a federal chamber, or extending the freeze further. Whatever path is chosen will need careful consensus with the States.

Reserved constituencies and delimitation

Delimitation also decides which constituencies are reserved for Scheduled Castes and Scheduled Tribes under Articles 330 and 332. The number of reserved seats in each State is worked out from the share of SCs and STs in its population at the relevant census. ST seats are placed where the tribal share of the population is highest, and SC seats are spread across the State in areas with a relatively high SC share, so that reservation does not become concentrated in one region. Because the 2002 Commission used the 2001 Census for this purpose, the number of reserved seats changed in several States, even though total seats did not. A future delimitation would again reshuffle reserved seats, and, once the 106th Amendment’s women’s quota takes effect, would also determine the rotation of seats reserved for women, including within SC and ST seats.

For Mains, remember that delimitation is not a single issue of seat totals. It touches representation of social groups, the federal balance, and the practical running of a much larger legislature.

Delimitation in Assam and Jammu and Kashmir

Some regions were handled separately. Delimitation in Assam, Manipur, Arunachal Pradesh and Nagaland was deferred in 2008 because of security concerns and objections. The Election Commission later redrew Assam’s constituencies in 2023 under Section 8A of the Representation of the People Act, 1950. In Jammu and Kashmir, a Delimitation Commission under Justice Ranjana Prakash Desai issued its final order in 2022, raising Assembly seats to 90.

Delimitation: UPSC angle

Delimitation UPSC PYQs (Prelims)

Questions UPSC has actually asked, from the official papers. Pick an option to check yourself.

Mains PYQs on this topic

No UPSC Mains question from 2023-2026 is directly on this topic. Older papers (2013-2022) will be added as the Mains bank grows.

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