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The delimitation debate is back. Months after the government’s earlier proposal failed to secure passage in Parliament, the Centre has renewed efforts to build political consensus around delimitation and women’s reservation, with reports suggesting that a special session of Parliament may be convened for another attempt.

The government’s central reassurance remains that southern states will not lose their existing proportional share of Lok Sabha seats. Under the earlier proposal, the House would expand from 543 to 816 seats, while the share of the five southern states — Andhra Pradesh, Telangana, Karnataka, Kerala and Tamil Nadu — would increase from 129 to 195 seats, preserving their share at roughly 24 per cent.

Also read: Inside the delimitation battle: What Centre wants and why Opposition is resisting

This certainly protects the South from the more severe consequences of strict population-based delimitation. But proportional protection should not be confused with protection of political influence.

Promise is not law

The Delimitation Commission, once constituted under Article 82 of the Constitution, functions as an independent statutory body. Its orders are not subject to challenge in any court. A political assurance made at a party rally or even communicated formally on the floor of the House cannot bind a Commission constituted under a separate parliamentary Act.

The only way to make the proportional freeze legally enforceable is to write it into the text of the Delimitation Bill itself. Southern parties, including TDP, a BJP ally, must therefore treat the legislative text as the only acceptable guarantee.

Consider the majority threshold. In the present 543-member Lok Sabha, 272 seats are required for a majority. The five southern states together have 129 seats. Even if they hypothetically acted as one bloc, they would require support from another 143 MPs.

The math of it

In an 816-member House, the majority threshold becomes 409. The South may have 195 seats, but it would now require another 214 MPs to reach a majority.

The South’s percentage remains almost unchanged, but the absolute number of MPs it must mobilise outside the region increases by 71.

Also read: Explained: DMK’s 3 conditions that could make or break Delimitation Bill

This does not mean that the South’s mathematical share of the House has declined; under a genuine proportional freeze, it has not. The concern is about how representation translates into political leverage. Parliamentary power is exercised through absolute numbers, forming governments, sustaining coalitions, passing legislation and negotiating political support.

This matters particularly because the South is not a unified political bloc. Its five states have distinct and often competing party systems. Meanwhile, an expanded House would create very large concentrations of seats in a few populous northern states. Under the proposed arrangement, Uttar Pradesh and Bihar together would have around 180 seats, compared with 195 across all five southern states. Four large Hindi-belt states would together have around 262.

Thus, preserving the South’s percentage does not necessarily preserve its bargaining position within the political geography of an enlarged Parliament.

Constitutional freeze

There is also a historical reason why the South’s concerns cannot be reduced to simple population arithmetic.

The constitutional freeze on interstate seat redistribution, introduced in 1976 and subsequently extended until the first census after 2026, was based on a clear principle: states that successfully controlled population growth should not be punished with reduced political representation.

Southern states responded comparatively successfully to India’s national family-planning and developmental objectives. Their lower population growth today is partly the consequence of those achievements. Returning to population as the dominant basis of representation without adequate safeguards risks converting successful demographic transition into a political disadvantage.

Also read: Why delimitation Bills appear more ominous than originally thought

The proportional freeze acknowledges this problem, but only partially. It prevents an immediate decline in the South’s share; it does not answer the broader question of how population, developmental performance, federal balance and political representation should be reconciled.

Legal status of govt promise

This makes the legal status of the government’s assurance crucial. Political commitments that no southern state will lose its proportional share cannot substitute for an enforceable legislative guarantee.

If the government is committed to protecting the South’s representation, that principle should be explicitly incorporated into the constitutional and statutory framework governing the next delimitation exercise.

Southern parties, including those supporting the Union government, should therefore evaluate the actual legislative text rather than rely solely on political assurances.

Multi-weighted formula

The renewed debate also offers an opportunity to reconsider whether population should remain the near-exclusive principle for distributing political representation among states.

One alternative worth examining is degressive proportionality. The European Parliament uses this principle so that larger member states receive more seats overall, but smaller states receive relatively greater representation per citizen. The objective is not to disregard population but to balance population with the need to prevent a few large units from numerically overwhelming the rest of the federation.

Also read: Delimitation and the MP: Does India really need more lawmakers?

India should also explore a multi-weighted formula for representation, rather than treating population as the only relevant measure.

There is already a precedent for such balancing within Indian fiscal federalism. Finance Commission horizontal devolution does not distribute resources among states solely according to population. Multiple criteria such as population, area, demographic performance, income distance and other measures are assigned different weights to reconcile equity, need and performance.

Rethinking population representation

The Sixteenth Finance Commission has taken this logic further by assigning 10 per cent weight to contribution to GDP in horizontal devolution. The underlying principle is important: a federal formula need not depend on a single variable when several legitimate constitutional and developmental interests have to be balanced.

A similar debate is necessary for political representation. Population could remain the principal criterion, while demographic performance, federal balance or other carefully designed measures receive appropriate weight. Degressive proportionality and multi-weighted representation should therefore be seriously examined before India undertakes what may be its most consequential redistribution of political power since Independence.

The Rajya Sabha should also be part of this discussion. If the Lok Sabha becomes increasingly population-driven, strengthening Tezzbuzz character of the Upper House, including examining more equal representation of states, could provide an institutional counterweight.

Ultimately, delimitation is not simply an exercise in dividing 816 seats among India’s states. It is a choice about what the Indian federation believes representation should reward and protect.