Aalavandhan

Aalavandhan English Born to Rule is a 2001 Indian Tamil psychological thriller film directed by Suresh Krissna, and produced by S. Thanu. The film stars Kamal Haasan in dual roles, with Raveena Tandon, Manisha Koirala, Vallabh Vyas, and Milind Gunaji in supporting roles.

Vijay Kumar, a Commando in Delhi is due to marry his girlfriend Tejaswini Teju, a television news presenter. Vijays twin brother Nandu is a schizophrenic psychopath. They both were separated as children and Nandu spent most of his life in an asylum for killing his stepmother. Vijay cares about Nandu and looks forward to his release, but a doctor tells him that Nandu is a danger to the society and should not be released.Vijay and Teju visit Nandu to share the news about their impending marriage, which turns disastrous when Nandu sees in Teju his stepmother Jayanthi, who he hates for ruining his life. Seeking to save Vijay from Teju, who he sees as the witch, Nandu manages to escape custody after killing two other inmates. Nandu later kills his maternal uncle, who was responsible for admitting him in the asylum. After their marriage, Vijay and Teju are shocked on learning of Nandus escape. The doctor believes it was another patient who escaped, but Vijay is convinced that it was Nandu. ........

Source: Wikipedia