Kanmoodi Thirakum Pothu Song is from the Film Sachein starring Vijay from Kollywood & Genelia from Bollywood.
Sachein is a 2005 Tamil romance film directed by John Mahendran starring Vijay and Genelia D’Souza.
It also features Bollywood actress Bipasha Basu, in her Tamil cinema debut, with Vadivelu, Santhanam and Raghuvaran appearing in supporting roles.
Based on the director’s earlier Telugu film Neetho (2002), the film’s score and soundtrack are composed by Devi Sri Prasad.
The movie released to positive reviews and was declared as a commercial success at the box office.