Actress Anuya is excited about being a part of Shankar's multistarrer Nanban (remake of Aamir Khan's Bollywood blockbuster 3 Idiots). Anuya, who earlier appeared in Siva Manasula Sakthi and Madurai Sambavam, is confident that her role in Nanban will elevate her position in Kollywood. Anuya will be playing the role of Ileana's elder sister (originally played by Mona Singh), which has a crucial part in the climax of the movie. Anuya too believes the climax of Nanban will redefine her position in acting.
In the film, Vijay will appear as the unorthodox genius Rancchod Das, which was played by Aamir Khan. Jiva and Srikanth will appear as the naïve Farhan Qureshi and Raju Rastogi, which were played by Madhavan and Sharman Joshi respectively. S.J. Suryah will play the role of Chatur (Omi Vaidya). Ileana D'Cruz will appear in the role played by Kareena Kapoor and Sathyaraj will appear as the insensitive professor Virus, played by Boman Irani.