The lowest margin of victory in the Tamil Nadu Assembly elections 2026 was recorded by TVK candidate Seenivasa Sethupathy R, who won Tiruppattur seat by just one vote. DMK's Srinivasan PS secured the Veppanahalli constituency by 138 votes, the second-lowest margin of victory. AIADMK's Thalavai Sundaram N won the Kanniyakumari seat by 214 votes, the third-lowest margin.