The political circles of Chennai got a new sense of confidence on Friday as Higher Education Minister P Viswanathan announced without any qualms that Rahul Gandhi was the Congress party's prime ministerial candidate for the 2029 Lok Sabha election. It may seem like a common-sense declaration from a state minister who is loyal to his party's leadership in the central government. It isn't. The event was held on the fringes of the parliamentary proceedings and in the midst of a lot of noise and was one of the more telling data points in a little known power struggle going on in the opposition INDIA bloc from within.

Viswanathan's comments came while he was briefing reporters in Chennai on the measures taken to help the Tamil tourists who had been affected by the flash floods that claimed hundreds of lives across the country of Nepal. However, it was his off-the-cuff political remark that got spread around. As Congress leaders, it is very clear that our beloved leader and Leader of Opposition Rahul Gandhi is the INDIA bloc's prime ministerial candidate for 2029, he said, adding that there was "no room for other questions" on the issue. When asked about any possibility of him getting a deputy prime ministerial role as the Tamil Nadu Chief Minister, he refused to comment and just reiterated that the next two and a half years leading up to the general election had already been used to organise the party in the state under the leadership of its Congress chief Manickam Tagore.

It was not just an idle comment. The actor-politician's outfit Vijay's Tamilaga Vettri Kazhagam that roared to power in this year's Tamil Nadu assembly election with 108 of the 234 seats, albeit without a majority, has been conducting a clear-cut campaign to position its leader as a national leader in the last few weeks.

A Tamil leader taking over the prime minister's office after 2029 is a viable option as "Vijay's quick political rise" suggests that such a change is "a natural progression", say TVK legislators and ministers including HR management minister Sarathkumar, PWD minister Aadhav Arjuna and MLA Kanimozhi. Intimidation, not diplomacy, has been the response of congress ministers who are part of the same coalition government.

Last week, tourism minister S Rajesh Kumar threatened to quit the Vijay government if TVK did not toe the line of Gandhi. Congress's other primary partner, DMK, has taken a step further, with a party spokesperson alleging that Congress was an "unstable partner" that might jeopardise the unity of the opposition ahead of the 2029 elections because of its flirtation with TVK.

This scramble was prompted by a survey. The poll carried out by India Today-CVoter between the direct Interviews conducted on the ground on a sample of over 25,000 responses received and Tracking calls conducted over six months, placed Vijay in third position as preferred choice of Prime Minister with 9.2 per cent of the total votes, behind Narendra Modi with 48.7 per cent and Rahul Gandhi with 27.1 per cent, but ahead of much more established opposition leaders like Mamata Banerjee, Arvind Kejriwal and Akhilesh Yadav. It was a surprise for a party that had no MPs, with a chief minister who made his debut in electoral politics just a year ago. It also gave TVK a card that it is obviously determined to use in seat-sharing talks, if Vijay ever challenges for a Lok Sabha seat.

In the same survey, if the election were conducted today, it shows that BJP-led NDA is expected to garner 326 seats while the INDIA bloc 185, which is a smaller margin than the one which was available in January. That context matters. Congress's demand for Gandhi is not just about sentimental commitment to the Gandhi family, it's a wager that one known national image provides the best chance to unite anti-BJP votes, while a multi-faceted regional groups of aspirants with their own local agendas, Banerjee in Bengal, Naidu-style regional stalwarts, and now Vijay in Tamil Nadu, can erode that unity at a time when it can least afford it.

There's also a tougher economic argument to the theatre. Tamil Nadu cannot be an afterthought. The economy of the state is the second largest in the country, accounting for about 9 percent of India's gross domestic product, and with two years in a row of double-digit real growth, it beat the national rate in 2025-26 when gross state domestic product (GSDP) peaked above ₹35 lakh crore. It has a manufacturing base that includes automobiles, electronics, textiles and a growing semiconductor drive, and receives consistent foreign capital inflows, with total foreign direct investment (FDI) since the beginning of October 2019 amounting to over $17 billion. A chief who sits on the top of that economic engine who has nothing binding on him with any formal national alliance even now has real bargaining power, which Congress can't wave away with a press statement, no matter how robust the message.

TVK, interestingly, is not a formal part of the INDIA bloc despite being in government with Congress and the Left parties, as well as the VCK and IUML, in Chennai, which allows the Vijay camp to continue with their national agenda but not technically defying the INDIA bloc. Congress' own leadership at the state level has been ambiguous: while some leaders have refused to budge from the Gandhi stand, claiming that it is “Vijay's stand,” others have threatened to quit the Congress if it is unable to support the Congress party as a whole.

All of that isn't going to be resolved anytime soon. What Friday's statement effectively says is that Congress does not see any ambiguity on its face as an existential threat to its national relevance while TVK sees ambiguity as leverage they are not ready to cede. Both calculations are rational. It's going to be determined less by the pronouncements in Chennai by 2029 and will depend on which has more seats in the Lok Sabha.