The political corridors of New Delhi are increasingly buzzing with discussions surrounding the upcoming delimitation exercise. While much of the public debate remains polarized along partisan lines, the core structural crisis of this demographic realignment has been largely ignored. Delimitation is not a novel concept in Indian political history. In 1976, through a Constitutional Amendment, Parliament temporarily suspended periodic inter-state seat reapportionment under Article 82, freezing Lok Sabha seat shares based on the 1971 Census. This temporary measure aimed to allow high-fertility states the necessary time to implement population control measures without losing their democratic voice.
However, as the initial deadline approached, Parliament passed the 84th Constitutional Amendment Act of 2001 (read alongside the 87th Amendment Act of 2003), extending this representation freeze until the first census conducted after the year 2026. Today, that deadline is rapidly approaching, and the demographic divide has only widened. Data from the National Family Health Survey (NFHS-5) published in 2021 by the Ministry of Health and Family Welfare reveals that Southern states like Tamil Nadu, Kerala, Karnataka, Andhra Pradesh, and Telangana have successfully brought their Total Fertility Rates well below the replacement level of 2.1. Conversely, the densely populated northern belt continues to experience high population growth. A purely demographic seat redistribution post-2026 would dramatically shift political power northward, with research by Milan Vaishnav and Jamie Hinston (Carnegie Endowment for International Peace, 2019) projecting that the northern states could gain 40 to 50 Lok Sabha seats while Southern representation systematically shrinks.
The Fiscal Paradox of Horizontal Tax Devolution
This demographic divergence does not merely present a political representation crisis; it exposes a deep systemic flaw in India’s fiscal architecture. Under the current framework of the 15th Finance Commission (2021-2026), horizontal tax devolution to states is heavily skewed against economic performance. The allocation formula assigns a massive 45% weightage to Low Per-Capita Income States and 15% to Population (based on the 2011 Census), while dedicating a meager 12.5% weightage to Demographic Performance.
This formula creates a striking economic paradox. Highly industrialized, progressive states like Tamil Nadu, Karnataka, and Kerala generate the largest share of India’s national direct tax and GST collections. Yet, under the horizontal devolution mechanism, Tamil Nadu receives a mere 4.08% share, Karnataka receives 3.65%, and Kerala is allocated just 1.93% of the central divisible pool. In stark contrast, states that have made significantly less progress in population stabilization, educational development, and economic growth receive disproportionately massive shares. For instance, Uttar Pradesh and Bihar contribute far less to the central divisible pool but are rewarded with devolution shares of 17.93% and 10.06%, respectively.
The Compliance and Revenue Implications of the ‘Tax Penalty’
From a tax compliance perspective, this imbalance acts as a direct penalty on administrative efficiency and economic modernization. Since the introduction of the Goods and Services Tax (GST)—which is fundamentally a destination-based consumption tax—states have invested heavily in upgrading their tax administrations, curbing evasion, and facilitating business compliance. When progressive states successfully expand their tax bases and drive up collections, they expect these revenues to fund local infrastructure, public services, and industrial growth. To understand how consumption taxes impact local economies, it is helpful to analyze the broader relationship between consumption taxes and their wider economic implications.
However, under the current devolution model, the revenue generated by compliant, high-performing states is systematically diverted to subsidize regions with weaker fiscal discipline and higher population growth. This creates a severe moral hazard. If states that aggressively pursue tax compliance audits and administrative reforms are financially penalized through lower central transfers, the incentive to maintain rigorous tax enforcement is undermined. This structural misalignment highlights the need for robust legislative oversight, a topic often discussed during key legislative sessions, such as when the Rajya Sabha’s legislative oversight on GST and tax compliance audits becomes a focal point of national attention.
Constitutional Safeguards and the Basic Structure
This systematic marginalization of economically progressive states directly challenges the constitutional principle of federalism. Ever since the landmark ruling in Kesavananda Bharati v. State of Kerala (1973), the Supreme Court has maintained that Parliament cannot use its amending powers under Article 368 to alter the Basic Structure of the Constitution. Later, in S.R. Bommai v. Union of India (1994), the apex court explicitly ruled that federalism is an essential feature of this Basic Structure.
True federalism requires that all federating units share power equitably. When progressive states are politically marginalized in the legislature precisely because they successfully implemented national policies like population control, federalism becomes merely pretentious. Rewarding high-fertility states with greater legislative control while draining the financial resources of demographically stable states violates the spirit of a cooperative union.
Global Precedents and a Balanced Path Forward
International federal democracies have long recognized this danger and actively prevent demographic imbalances from dictating legislative and fiscal power. Under Article 14(2) of the Treaty on European Union (TEU), representation in the European Parliament is governed by ‘Degressive Proportionality’. Under this principle, while larger member states hold more total seats, smaller member states are guaranteed more seats per capita to protect their political voice.
Similarly, Article 1, Section 2 of the United States Constitution guarantees every state at least one representative regardless of population size, while the Apportionment Act of 1929 capped the total membership of the House of Representatives at 435 seats. India could draw inspiration from these balanced models. Rather than relying solely on raw population headcounts, seat allocation could be determined by a multi-dimensional formula:
Seat Share = 50% (Population) + 30% (Demographic Performance Index) + 20% (Human Development Index & Fiscal/Revenue Contribution)
This formula builds upon the 15th Finance Commission’s recommendation of allocating 12.5% weightage to demographic performance. By directly linking 20% of representation to HDI growth and fiscal contribution, the state-level incentive structure would shift. States would be actively rewarded for improving education, managing healthcare, and driving tax compliance and revenue generation.
Furthermore, to prevent a demographic majority in the Lok Sabha from unilaterally dictating national policy, India could reform the Rajya Sabha. By amending Article 80 of the Constitution, Parliament could introduce equal representation for all states, similar to the US Senate. Granting the Rajya Sabha a federal veto over critical matters—such as state boundary changes, federal fiscal transfers, and subjects under the Concurrent List—would safeguard the legislative voice of high-performing states, ensuring that delimitation strengthens, rather than dismantles, the Indian Union.
Frequently Asked Questions
In 1976, under the Constitutional Amendment Act, Parliament temporarily blocked periodic inter-state reapportionment under Article 82, fixing seat shares according to the 1971 Census. This was done to extend representation to high-fertility states to help them control and stabilize their population growth.
Under the 15th Finance Commission (2021-2026), horizontal tax devolution allocates a 45% weightage to Low Per-Capita Income States, 15% to Population (based on the 2011 Census), and 12.5% to Demographic Performance.
While highly industrialized Southern states like Tamil Nadu, Karnataka, and Kerala contribute the largest shares of national direct tax and GST collections, they receive only 4.08%, 3.65%, and 1.93% of the central divisible pool, respectively. Conversely, Uttar Pradesh and Bihar contribute significantly less but receive disproportionately large shares of 17.93% and 10.06%, respectively.
The proposed alternative formula suggests allocating 50% of parliamentary seats based on Population, 30% based on the Demographic Performance Index, and the remaining 20% based on Human Development Index (HDI) growth and the Fiscal/Revenue Contribution of the respective state.