3 Idiots in Tamil heros

Amir Khan's 3 Idiots - the Hindi movie was a super hit movie. Now Director Shankar is remaking the film in Tamil in the name "Nanban". The heroes of the film are Vijay, Srikanth and Jeeva. Earlier many changes are took place like changing the hero and name changing etc. Now finally the shooting of the film is progressing. Ileena is the heroine of the film. The story of the film is based on