V. S. Babu of the Tamilaga Vettri Kazhagam (TVK) defeated incumbent Chief Minister M. K. Stalin in the Kolathur assembly constituency [1, 2].

The victory represents a significant shift in the regional political landscape, as a candidate from a newer party unseated the head of the state government in a direct electoral contest.

Babu, who is 75 years old [3], said his success was due to the support and congratulations of actor "Thalapathy" Vijay [2]. The win marks a return to legislative office for Babu, who previously served as a Member of the Legislative Assembly (MLA) representing Purasawalkam [3].

Babu has a history with the Dravida Munnetra Kazhagam (DMK), the party of the defeated chief minister. He won an assembly election as a DMK candidate in 2006 [3]. However, his political trajectory shifted recently when he joined the TVK on Feb. 7 [3].

The outcome in Kolathur has been described as a "giant slayer" scenario due to the stature of the defeated candidate [2]. While the TVK is a newer entity in the Tamil Nadu political arena, the victory in this specific constituency suggests a strong localized or celebrity-driven momentum that could influence future electoral strategies in the region [2].

Babu said the victory was made possible through the guidance and support of the party leadership [2].

Babu won the Kolathur assembly constituency, beating the sitting chief minister in a major upset.

The defeat of a sitting chief minister by a candidate from a newer party like TVK indicates a potential volatility in voter loyalty in Tamil Nadu. By leveraging the popularity of actor Vijay, the TVK has demonstrated that it can successfully challenge established political dynasties and incumbents, potentially altering the traditional bipolarity of the state's political structure.