EAC-PM recommends targeted splitting of seats for delimitation, shows model allowing 50% rise for all large States

The Economic Advisory Council to the Prime Minister (EAC-PM) has published a working paper recommending a targeted, data-driven model for delimitation of Lok...

What Happened

The Economic Advisory Council to the Prime Minister (EAC-PM) has published a working paper recommending a targeted, data-driven model for delimitation of Lok Sabha constituencies, proposing an expansion from the current 543 seats to 824.
The study assembled a dataset covering Lok Sabha election results from 2009 to 2024, building a statistical model of the relationship between voter turnout, constituency size, and five compositional features: Scheduled Caste (SC) population share, Scheduled Tribe (ST) population share, linguistic diversity, social polarisation, and urbanisation.
The model recommends splitting 170 existing seats — 59 into two constituencies and 111 into three — rather than uniformly redrawing all constituency boundaries, making this a "targeted splitting" approach.
The EAC-PM estimates this could increase voter turnout by 0.3 to 2.3 percentage points, potentially bringing 90 lakh to 2.3 crore additional voters into the active electoral fold.
The proposed expansion broadly aligns with the constitutional floor of 824 that emerged from earlier parliamentary discussions, and with a Delimitation Bill that the Centre had sought to advance but not yet passed.

Static Topic Bridges

Constitutional Basis of Delimitation — Articles 82, 170, 330, and 332

Delimitation is the process of redrawing the boundaries of parliamentary and assembly constituencies after each Census. It is constitutionally mandated — not discretionary — and is tied directly to the decennial Census.

Article 82 mandates readjustment of allocation of seats in the Lok Sabha and state assemblies after each Census, to be carried out by an authority constituted by Parliament (the Delimitation Commission).
Article 81 sets the maximum strength of the Lok Sabha at 550 (currently operative at 543 elected members from states).
Article 170 does the same for State Legislative Assemblies.
Articles 330 and 332 provide for reservation of seats for Scheduled Castes and Scheduled Tribes in Lok Sabha and state assemblies respectively, based on population ratios — these must be recalibrated with each delimitation exercise.
The Delimitation Commission Act, 2002 is the statutory instrument; it constitutes the Delimitation Commission under a retired Supreme Court judge as chairperson, along with the Chief Election Commissioner and state election commissioners.

Connection to this news: The EAC-PM's model directly engages with Article 82's mandate. By proposing a multi-factor statistical approach rather than pure population-proportionality, it offers a framework that attempts to reconcile the constitutional obligation to readjust seats with the political sensitivity around inter-state disparities.

The Freeze on Seat Allocation — 42nd and 84th Amendments

The Lok Sabha seat count has been frozen at 543 since 1977, despite five Census cycles since then. This was a deliberate constitutional choice, driven by concerns about penalising states that had controlled population growth.

42nd Constitutional Amendment (1976): Froze the seat allocation after the 1971 Census, directing that the allocation would not change until after the first Census following 2000 — effectively a 30-year freeze.
84th Constitutional Amendment (2001): Extended the freeze until after the first Census following 2026 — pushing the obligation to readjust to the post-2026 window.
The 2011 Census was conducted but seat allocation was not readjusted; the 2021 Census was delayed (COVID-19 and thereafter); the 2026 constitutional deadline has now arrived.
The freeze means a constituency in a rapidly growing state like Uttar Pradesh (80 seats for a population of ~24 crore) is today far more populous than one in Kerala or Tamil Nadu (where family planning success reduced growth).

Connection to this news: The EAC-PM's paper is directly triggered by the approaching end of the constitutional freeze. Its 824-seat model is designed to be the analytical foundation for the Delimitation Commission when it is constituted to carry out the post-2026 exercise.

The EAC-PM — Role, Composition, and Significance

The Economic Advisory Council to the Prime Minister (EAC-PM) is a non-constitutional expert body advising the Prime Minister on economic policy, including structural and political economy questions.

It is constituted by an executive order and is chaired by an eminent economist; it has no statutory powers but provides intellectual inputs to government policy.
Its working papers are advisory in nature and do not carry legislative force; however, they often frame the terms of official debate.
In this case, the EAC-PM has ventured into the intersection of electoral statistics and constitutional law — an unusual brief that signals the government's desire for technocratic legitimacy for its delimitation approach.
The council's dataset of Lok Sabha elections from 2009–2024 represents a four-election span covering three governments, lending its statistical model cross-partisan robustness in principle.

Connection to this news: The EAC-PM's recommendation of a 824-seat Lok Sabha via targeted splitting — rather than wholesale redrawing — is a politically calibrated model. Its analytical framework (multi-factor, not purely population-based) is designed to address southern states' core grievance that population-only delimitation punishes them for demographic success.

Southern States' Representation Concerns

The core political tension in the delimitation debate is a north-south asymmetry: northern states with higher population growth rates stand to gain seats under any population-proportional formula, while southern states — which achieved lower fertility rates earlier — face relative losses.

Under a pure population-proportional model using 2011 Census data, Tamil Nadu's seats would fall from 39 to approximately 32, and Kerala's from 20 to approximately 15.
Uttar Pradesh (currently 80 seats) could rise to as many as 120 under such a model.
The EAC-PM's model partially addresses this: the targeted-splitting approach gives all large states a roughly 50% increase, with southern states projected to hold 23.7% of seats post-delimitation vs. 23.6% currently — a marginal improvement.
Southern state governments have repeatedly called for the freeze to be extended further, arguing that the formula should incorporate development indicators (not just raw population) in allocating seats.

Connection to this news: The EAC-PM model's near-proportional outcome for south and north (45.6% for northern/western states vs. 45.2% currently) is its politically significant claim — it attempts to expand the house without dramatically altering regional power balances.

Key Facts & Data

Current Lok Sabha strength: 543 seats (elected from states); the constitutional maximum under Article 81 is 550.
Post-84th Amendment freeze: Seat allocation locked until after the first Census following 2026 — that Census is now due.
EAC-PM's proposed new strength: 824 seats — achieved by splitting 170 existing constituencies.
Methodology: Statistical model of turnout vs. constituency size using 2009–2024 election data, plus 5 compositional factors.
Expected turnout gain: 0.3–2.3 percentage points; 90 lakh to 2.3 crore additional voters brought into active participation.
State-level illustrative increases under the model: UP: 80 → ~120; Bihar: 40 → ~60; Maharashtra: 48 → ~72.
Southern states' share of seats: 23.6% (current) → 23.7% (post-model) — near-unchanged.
The Women's Reservation Act (106th Constitutional Amendment, 2023) provides for 33% reservation in Lok Sabha for women — this reservation is linked to delimitation and can only take effect after the next delimitation exercise, giving the 824-seat expansion added urgency.
The Delimitation Commission, once constituted, is headed by a retired Supreme Court judge; its orders have the force of law and cannot be questioned in any court (Article 329(a)).