The Tamil Nadu Legislative Assembly on Wednesday, 12 August passed a special resolution moved by Chief Minister C. Joseph Vijay urging the Centre to permanently freeze the strength of the Lok Sabha at 543 seats and protect the existing distribution of Parliamentary seats among states, amid mounting concerns over a future delimitation exercise. The move drew sharp reactions from across the political spectrum, with the Bharatiya Janata Party (BJP) and the Pattali Makkal Katchi (PMK) opposing the resolution while the Dravida Munnetra Kazhagam (DMK) extended its support.

BJP's Reaction: DMK and TVK in the Same Corner

Tamil Nadu BJP spokesperson Narayanan Thirupathy said the DMK and the Tamilaga Vettri Kazhagam (TVK) — the party led by Chief Minister Vijay — are 'sailing in the same boat' on the delimitation question. He argued that the DMK's position has been contradictory, noting that the party first insisted not a single seat should be lost, and is now reportedly assured that Tamil Nadu will retain more than 20 seats.

Thirupathy also pushed back against the framing of delimitation as a north-south conflict, pointing out that key constitutional posts are currently held by leaders from different regions. 'The President of India (Droupadi Murmu) is from Odisha, the eastern part of the country. The Vice-President (C.P. Radhakrishnan) is from the southern part, particularly from Tamil Nadu, and the Prime Minister (Narendra Modi) is from the western part, that is Gujarat. So, no North Indian is occupying the highest post in the country,' he said.

BJP MLA Bhojarajan added that delimitation is necessary to increase the number of public representatives so they can serve citizens more effectively, and cautioned against casting the issue as a regional divide. 'We are one nation despite having different cultures and languages, and we should not make excuses and allegations that the Central government will create divisions between North and South India,' he said.

DMK Defends Its Stand

DMK spokesperson T.K.S. Elangovan maintained that delimitation 'isn't necessary' and defended the party's decision to back the resolution. He argued that if the delimitation exercise proceeds with an expansion to 850 seats — as reportedly proposed — all four southern states combined would get around 170 MPs, while the remaining northern states would command 680 MPs. 'The southern states will be ignored by the government, whoever comes into power,' Elangovan alleged.

He clarified that the DMK's core demand has been for existing constituencies to continue without alteration, and that the party's support for the resolution stems from protecting the proportional representation of Tamil Nadu and other southern states.

PMK Cites Amit Shah's Parliamentary Assurance

PMK MLA Sowmiya Anbumani, whose party opposed the anti-delimitation resolution, invoked Union Home Minister Amit Shah's statement in Parliament, in which Shah had reportedly assured that a fresh delimitation exercise would increase the absolute number of Lok Sabha seats for every state by around 50 per cent while protecting the proportional share of southern states. 'When a minister makes an announcement in Parliament, it is an assurance to citizens. So, we have to take it that way,' Anbumani told reporters.

What's at Stake

The delimitation debate has become one of the most politically charged issues in southern India, with critics arguing that states which performed better on population control — including Tamil Nadu, Kerala, Karnataka, Andhra Pradesh, and Telangana — stand to lose parliamentary representation relative to more populous northern states. The current freeze on seat allocation has been in place since the 1971 Census, and any revision tied to the upcoming Census could redraw the political map significantly. How the Centre responds to the Tamil Nadu Assembly's resolution, and whether other southern state legislatures follow suit, will shape the next phase of this debate.