Law and statutory body
Delimitation Bill, 2026 and Constitution (131st Amendment) Bill, 2026
GS2 Polity: Parliament, delimitation and federalismGS2 Constitutional amendmentsPrelims and Mains
- Why in news
- On 16 April 2026, Home Minister Amit Shah spoke in the Lok Sabha on the Delimitation Bill, 2026 and the Constitution (131st Amendment) Bill, 2026. He said southern states would not lose share under a 50% increase in seats, from 543 to 816.
- What it is
- Delimitation is the redrawing of Lok Sabha and Assembly constituency boundaries and the number of seats, based on the latest Census. It is done by a Delimitation Commission set up under an Act of Parliament, whose orders have the force of law and cannot be questioned in court. Seat numbers have been frozen by constitutional amendments, so a fresh exercise needs an amendment.
- Proposed House size
- The 50% increase model raises Lok Sabha seats from 543 to 816.
- Southern states' seats
- Southern states' combined seats rise from 129 to 195, keeping their share near 24 per cent.
- Delimitation Commission Act
- The Minister said the existing Delimitation Commission Act is repeated unchanged.
- Constitutional basis
- Articles 82 and 170 provide for readjustment after each Census. Article 81 caps the Lok Sabha at 550 members (530 from states, 20 from UTs), so 816 seats need an amendment.
Don’t confuse with Delimitation vs reservation of seats: Delimitation redraws boundaries and seat numbers. Reservation of seats for SC/ST (or women) decides which seats are reserved.
Don’t confuse with Seat freeze: 42nd vs 84th/87th/91st: The 42nd Amendment froze seat allocation at 1971 Census levels. The 84th Amendment extended the freeze to the first Census after 2026. The 87th Amendment allowed boundaries to be redrawn on the 2001 Census, with total seats unchanged.
Laws, judgments and statutory bodies: 30 Prelims questions since 2013 (what the law says, who chairs, legal basis). In Mains, 44 news-triggered questions, most in GS2, asking for provisions and challenges.
Why it matters
- Seat numbers have been frozen since the 1971 Census, so the exercise corrects growing population imbalances between constituencies.
- It tests federal balance, since states that stabilised population earlier fear losing political weight.
Problems
- Southern states fear losing share to northern states with faster population growth, and trust in assurances is low.
- Any change in House size or seat allocation needs a constitutional amendment, which means a special majority and wide consensus.
- Delimitation depends on Census data, which is delayed and now includes caste enumeration.
Way forward
- Build consensus with states, perhaps through the Inter-State Council or a dedicated forum, and legislate safeguards for pro-rata shares.
- Keep the Delimitation Commission independent, with transparent criteria and public consultation.
Put in your answer
Constitutional freeze: The 42nd Amendment (1976) froze seats on the 1971 Census, and the 84th Amendment (2001) extended the freeze to the first Census after 2026.
- 2012Prelims Q54Challengeability of Delimitation Commission orders; legislative modification of orders
- 2024Prelims Q71Number of Delimitation Commissions constituted till December 2023
UPSC’s own questions that come close to this issue, from our Prelims and Mains banks.
Prelims practice · Statements
Ours, not from a UPSC paper
Consider the following statements:
- 1.Under the 50% increase model described by the Union Home Minister in the Lok Sabha, the strength of the Lok Sabha would rise from 543 to 816.
- 2.Article 81 of the Constitution at present fixes the maximum strength of the Lok Sabha at 550 members.
- 3.Orders of the Delimitation Commission can be challenged in a court of law.
Which of the statements given above is/are correct?
True or false?
1 of 7
Statements the way Prelims prints them. Say first, then see the fact.
1.Under the 50% increase model described in the release, the Lok Sabha would have 816 seats.
True. 543 rises by about 50% to 816.
2.According to the Home Minister, the southern states' combined seats would rise from 129 to 195.
True. 129 to 195, about 24 per cent share.
3.The Home Minister said the Delimitation Commission report would take effect on its own publication, without Parliament's approval.
False. It takes effect only after Parliament approves it and the President assents.
4.The Home Minister said the proposed delimitation would not apply to elections held up to 2029.
True. Elections up to 2029 will use existing seats.
5.Article 81 of the Constitution at present fixes the maximum strength of the Lok Sabha at 550 members.
True. At most 530 from states and 20 from Union Territories.
6.Orders of the Delimitation Commission can be challenged in any court of law.
False. The orders have the force of law and cannot be questioned in any court.
7.Under the Constitution, a Delimitation Commission is appointed by the Election Commission of India.
False. It is set up by the Central Government under an Act of Parliament.
Written by us from the release, not by UPSC; checked by a second model.
Worth revising until Prelims 2027: most news questions come within two years of the event.