Thillu Mullu is a 1981 Indian Tamil-language comedy film directed by K. Balachander and written by Visu.
The film stars Rajinikanth as Chandran, an unemployed graduate living with his sister Uma and their doctor/family friend. When Chandran lies to get a leave from his boss Sriramachandra, he gets caught and is forced to pretend that he has a twin brother to save his job.
Thillu Mullu features supporting performances by Thengai Srinivasan, Nagesh, Poornam Viswanathan, Sowcar Janaki, Madhavi, and Viji Chandrasekhar. The film was released on 1 May 1981 as a remake of the 1979 Hindi film Gol Maal.
