What Happened
- The Constitution (131st Amendment) Bill, 2026 — the centrepiece of a three-bill package to enable women's reservation and delimitation — was defeated in the Lok Sabha on April 17, 2026, during a special parliamentary session.
- The bill received 298 votes in favour against 230 votes against; out of 529 MPs present and voting, the government needed 352 votes (two-thirds of those present and voting) to pass it, falling short by 54 votes.
- This is the first time in 12 years — since the NDA came to power in 2014 — that a constitutional amendment bill moved by the government has been defeated in the Lok Sabha.
- Following the defeat, Parliamentary Affairs Minister Kiren Rijiju announced the withdrawal of the two linked bills: the Delimitation Bill, 2026 and the Union Territories Laws (Amendment) Bill, 2026.
- A united opposition — Congress, TMC, SP, DMK, and others — voted against, while NDA allies voted in favour; no abstentions were recorded.
Static Topic Bridges
Constitutional Amendment Procedure: Article 368
Article 368 of the Constitution vests Parliament with the power to amend the Constitution. An amendment bill may be introduced in either House, and must be passed by a majority of the total membership of each House (absolute majority) AND by a majority of not less than two-thirds of the members of that House present and voting (special majority). For certain provisions — those dealing with federal structure, such as Articles 54, 55, 73, 162, and Chapter IV of Part V — ratification by at least half the State Legislatures is additionally required. The special majority requirement ensures that fundamental changes to the Constitution carry broad parliamentary consensus, not just a ruling majority.
- Article 368 introduced by Part XX of the Constitution
- Two types of special majority amendments: (a) two-thirds of members present and voting + absolute majority, and (b) same + ratification by half the states
- The required threshold in this case: 352 out of 529 members present and voting
- Simple majority suffices for ordinary legislation under Article 100
Connection to this news: The 131st Amendment Bill required a two-thirds special majority under Article 368. With 529 members present and voting, the government needed 352 votes but secured only 298, making the defeat a constitutional — not merely political — setback.
The 106th Constitutional Amendment (Nari Shakti Vandan Adhiniyam, 2023)
The Constitution (106th Amendment) Act, 2023, popularly known as the Nari Shakti Vandan Adhiniyam, was passed in a special session of Parliament in September 2023. It inserted Articles 330A (reservation for women in the Lok Sabha), 332A (reservation in State Legislative Assemblies), and provisions within Article 239AA (Delhi Assembly). It reserves one-third of all directly elected seats for women, with sub-reservation for SC/ST women within the reserved quota. Critically, the Act does not self-execute: it provides that the reservation shall take effect only after the delimitation exercise based on the first census conducted after the Act's commencement.
- Passed in Lok Sabha: September 20, 2023 (454 in favour, 2 against)
- Passed in Rajya Sabha: September 21, 2023 (214 in favour, 0 against)
- Constitutes Articles 330A, 332A, and amended 239AA
- Historical journey: first introduced as the 81st Amendment Bill in 1996; lapsed and reintroduced multiple times over 27 years
- Brought into force (notified) on April 16, 2026 — one day before the 131st Amendment Bill debate
Connection to this news: The 131st Amendment Bill was the implementation mechanism for the 106th Amendment — it sought to expand Lok Sabha seats to 850 and allow delimitation based on the 2011 Census so that reservation could take effect by the 2029 elections. Its defeat leaves the 2023 Act in force but practically unimplementable until a new delimitation framework is enacted.
The Seat Freeze: 42nd and 84th Constitutional Amendments
The current Lok Sabha has 543 seats — a figure frozen in time by two amendments. The 42nd Amendment (1976), enacted during the Emergency under Prime Minister Indira Gandhi, froze the allocation of Lok Sabha and State Assembly seats based on the 1971 Census until 2001, to prevent southern states — which had progressed on family planning — from losing representation to faster-growing northern states. The 84th Amendment (2002) extended this freeze until the "first census conducted after 2026," meaning that for over 50 years, the inter-state distribution of Lok Sabha seats has been based on 1971 population data.
- 42nd Amendment: assented December 18, 1976; froze seats at 1971 Census levels until 2001 Census
- 84th Amendment: enacted 2002; extended freeze to "first census after 2026" under Article 82
- Current Lok Sabha strength: 543 seats (based on 1971 Census data — India's population was then ~548 million)
- India's current population: over 1.4 billion — more than 2.5 times the 1971 figure
- The freeze expires in 2026, making this the first moment in over five decades when inter-state reallocation becomes constitutionally permissible
Connection to this news: The 131st Amendment Bill sought to unlock this freeze by raising the Lok Sabha's maximum strength to 850 and by permitting delimitation based on the 2011 Census (rather than waiting for the 2027 Census). Its defeat means the post-2026 delimitation framework must be re-legislated.
The North-South Federal Fault Line in Delimitation
Delimitation based on current population data risks a major redistribution of political power from southern to northern India. Southern states — Kerala, Tamil Nadu, Andhra Pradesh, Karnataka, Telangana — successfully implemented family planning decades earlier, stabilising their populations. Northern states — Uttar Pradesh, Bihar, Rajasthan, MP — have higher fertility rates and faster-growing populations. Under a straight population-proportional delimitation using 2011 (or later) Census data, projections suggest southern states would collectively lose around 24 seats while northern states — UP alone — would gain around 17. The government's proposal to expand the total to 850 seats was explicitly designed to ensure no state loses seats in absolute terms.
- Southern states' current combined Lok Sabha strength: approximately 129 seats (~23.76% of 543)
- Under the proposed 850-seat Lok Sabha, Amit Shah stated southern states would gain 66 seats, rising to approximately 195
- Amit Shah's offer during debate: further amendment to increase total seats by 50% if opposition agreed
- The "demographic penalty" concern: southern states argue they are being penalised for successful population control
Connection to this news: The north-south federal anxiety was a core reason for opposition unity against the bill. Critics argued that even with seat expansion, using the 2011 Census — rather than the upcoming 2027 Census — entrenched population-based inequities without up-to-date caste/OBC data.
Key Facts & Data
- Vote count: 298 in favour, 230 against, 0 abstentions, 528-529 present and voting
- Required threshold: 352 votes (two-thirds of members present and voting)
- Shortfall: 54 votes
- First constitutional amendment bill defeat for the NDA government since 2014
- Three bills introduced April 16-17, 2026 in a special Parliament session: Constitution (131st Amendment) Bill, Delimitation Bill, and UT Laws (Amendment) Bill
- The 131st Amendment proposed raising Lok Sabha maximum strength from 550 to 850 (815 from states + 35 from UTs)
- The 106th Amendment (Nari Shakti Vandan Adhiniyam, 2023) was notified into force on April 16, 2026
- Under the existing 2023 Act, actual implementation of women's reservation cannot occur before 2034 (linked to census + delimitation)
- India's Lok Sabha seats have been based on 1971 Census data for over 50 years