Kadamaiyai Sei (transl. Do the duty) is a 2022 Indian Tamil-language psychological action comedy drama film written and directed by Venkat Ragavan in his second directorial film after Muthina Kathirika (2016). The film stars S. J. Suryah and Yashika Aannand, with Charles Vinoth as the main antagonist, and other actors like Rajendran and Vincent Asokan in pivotal roles. The film released theatrically on 12 August 2022.