The 25% Question In Tamil Nadu: Why Polls Vary On Vijay's Chances

Updated: May 03, 2026 11:31 am IST Published On May 03, 2026 11:26 am IST Last Updated On May 03, 2026 11:31 am IST

Published On May 03, 2026 11:26 am IST

Last Updated On May 03, 2026 11:31 am IST

The first past the post model is often the nightmare of a psephologist in India. It leads to vagaries of the kind the normal mind can least imagine. Chitrasen Sinku won the Singhbhum Lok Sabha seat in Jharkhand in 1996, polling just 21 per cent votes. The example of this Lok Sabha seat when scaled up to an entire state exemplifies the predicament over Vijay's vote share conversion in Tamil Nadu.

A Wholesome Psephological Framework For The First Past The Post Model

Can a vote share of even just 25 per cent, not the peak of 35 per cent as estimated by some polls for the TVK convert to a big win?

A framework of three factors explains this.

1. Concentration of votes: Breaks up the states into different categories of seats, which are not necessarily contiguous, but that which correspond to similar patterns of contest. In the case of Vijay, these, as per ground feedback, could be portions of northern Tamil Nadu, urban areas, minority-dominant and Scheduled Castes (SC) seats. Think of it like this - if this set of non-contiguous seats forms a smaller state by itself, say with 150-160 seats, the votes here could be concentrated enough to deliver the state to a lucky winner. The estimation of this catchment landscape is the first key.

2. Effective number of political parties on the landscape: Simply put, this means 'what is the real polarity of the contest'? Are they two parties, 2.5 parties, triangular, 3.5........

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