Kallakurichi is a first-grade municipality and the administrative headquarters of Kallakurichi district in Tamil Nadu, India. The district was formed as the 33rd district of Tamil Nadu by bifurcating Villupuram district on 8 January 2019. It covers 3,530.58 sq km across 2 revenue divisions and 7 taluks, with Kallakurichi located along NH 79. Member of the Legislative Assembly is M. Senthilkumar, MLA (AIADMK).