Tamil Nadu Chief Minister M.K. Stalin loses the Kolathur Assembly constituency seat, according to multiple reports. TVK’s V.S. Babu is declared the winner in Kolathur, defeating the sitting Chief Minister. One outlet notes that this result makes Stalin the fourth sitting Chief Minister in Tamil Nadu to lose an Assembly election, placing the defeat in a broader historical context of prior CM losses in state polls. The reports focus on the outcome in Kolathur and identify V.S. Babu as the candidate who defeats Stalin. Details on vote margins or the broader constituency-by-constituency dynamics are not included in the provided excerpts. Overall, the accounts agree on the core event: the Tamil Nadu CM’s loss in the Kolathur seat to the rival candidate from TVK. The reporting also frames the defeat as part of a pattern in which sitting chief ministers have previously been unseated in Assembly elections in the state.