The Bharatiya Janata Party (BJP), which contested as a constituent of the AIADMK-led National Democratic Alliance (NDA) in Tamil Nadu, suffered a massive setback in the 2026 Assembly elections. The party won only one of the 27 seats it contested.

In the 2021 Assembly elections, the party had won four seats. In this election, M. Bhojarajan alone won the Udhagamandalam Assembly Constituency by a slim margin of 976 votes. All the prominent faces of the party lost the election. These include Union Minister of State for Information and Broadcasting L. Murugan (Avanashi), party’s State president Nainar Nagenthran (Sattur), former Telangana Governor Tamilisai Soundararajan (Mylapore), BJP Mahila Morcha national president Vanathi Srinivasan (Coimbatore North), incumbent MLA M.R. Gandhi (Nagercoil), and S. Vijayadharani (Vilavancode).