Billa (1980)

Billa (Rajnikant) is a feared Mafia don in Madras, who is fatally wounded during an encounter with the police. Wanting to uncover Billa's accomplices, the police commissioner trains a lookalike village bumpkin (also Rajnikant) to pose as Billa and infiltrate the gang. Remake of Amitabh Bachchan's Don.