India’s Lok Sabha is set to expand dramatically from its current 543 seats to 850 members under the Constitution (One Hundred and Thirty First Amendment) Bill, 2026 — the most significant restructuring of India’s lower house of Parliament since the delimitation freeze that has kept the seat count at 543 since 1977.
The bill proposes amending Article 81 of the Constitution, which governs the composition of the House of the People. Under the amended clause, the Lok Sabha will consist of not more than 815 members chosen by direct election from territorial constituencies in the states, and not more than 35 members to represent the union territories, chosen in the manner Parliament may by law provide — a combined total of 850 seats against the current 543.
The amendment also substitutes clause 3 of Article 81, redefining population for the purposes of delimitation as the population as ascertained at such census as Parliament may by law determine, of which the relevant figures have been published — a formulation that gives Parliament flexibility in deciding which census data underpins the delimitation exercise rather than locking it to any specific census year automatically.
Why this matters
The current 543-seat Lok Sabha was frozen at that number by the 42nd Constitutional Amendment in 1976, which suspended delimitation until after the first census following 2000. That suspension was subsequently extended until after 2026 by the 84th Amendment, meaning India has been represented in Parliament by a seat count calibrated to population data that is now half a century old.
India’s population has grown from approximately 548 million in 1971 — the census on which the current 543-seat delimitation is broadly based — to over 1.4 billion today. The result has been an enormous and widening disparity in constituency sizes across the country. A Lok Sabha constituency in Uttar Pradesh or Bihar represents several million voters while a constituency in a smaller or more slowly growing state represents a fraction of that number — a distortion that the 850-seat expansion is designed to begin correcting.
The south India concern
The expansion of the Lok Sabha has been one of the most politically sensitive issues in Indian federal politics for years, because any seat allocation based on current population data inevitably increases the representation of states that have grown fastest — primarily the large northern states of Uttar Pradesh, Bihar, Madhya Pradesh, and Rajasthan — while the states of southern India that have more successfully implemented family planning and demographic transition policies see their relative share of parliamentary seats diluted.
Tamil Nadu, Kerala, Karnataka, Andhra Pradesh, and Telangana have all expressed concern that expanding Lok Sabha seats based on current population would effectively penalise them for their development success. The amended clause 3’s formulation — allowing Parliament to determine by law which census figures apply — is the legislative mechanism through which this tension will need to be resolved. Which census Parliament chooses to use will determine the political outcome of the seat expansion as much as the total number of seats itself.
The delimitation exercise ahead
The 850-seat expansion sets the constitutional ceiling. The actual allocation of those seats among states and union territories will be determined by the Delimitation Commission that will be constituted following the bill’s passage. That commission’s work — drawing new constituency boundaries, allocating seats among states, and determining reserved constituencies for Scheduled Castes and Scheduled Tribes — will be one of the most consequential exercises in Indian democratic governance in decades.
For voters, the expansion from 543 to 850 means each member of Parliament will represent a smaller slice of the electorate than they do today — bringing constituency-level representation closer to citizens in the country’s most populous states and potentially making individual MPs more accountable to more manageable voter bases. For political parties, it means 307 new Lok Sabha seats to contest, plan for, and invest in organisationally — a transformative shift in the geography of Indian electoral competition.
Disclaimer: This article is based on the text of the proposed Constitution (One Hundred and Thirty First Amendment) Bill, 2026. The bill is subject to parliamentary process and has not yet been enacted into law. Business Upturn is not responsible for any decisions made based on this article.