Yuddham Sei (transl. Wage War) is a 2011 Indian Tamil-language neo-noir mystery thriller film written and directed by Mysskin. It stars director Cheran and debutant Dipa Shah alongside an ensemble cast including Y. G. Mahendra, Lakshmi Ramakrishnan, Jayaprakash, and Selva in supporting roles. The film was released on 4 February 2011 and was remade in Kannada as Gharshane.