காதலர் தினம்

Manivannan as the man talking with Raja in railway station Goundamani as Romeo Chinni Jayanth as Mandi Rambha as Special Appearance (for song Oh Mariya) Lekha Washington as Uncredited Role Anupam Kher as the man talking with Raja in railway station (Hindi Ver) Johny Lever as Jack, a college professor (Hindi Ver) Raju Shrestha as Raju, Raja's friend (Hindi Ver) Kunal Singh as Raja Sonali Bendre as Roja Nassar as Dean Ramachandra Ragasudha as Roja's friend

Yugendran Playback Singer Vaali Lyricist P. Unnikrishnan Playback Singer Devan Ekambaram Playback Singer Hariharan Playback Singer M. G. Sreekumar Playback Singer P. C. Sreeram Director of Photography Kavita Krishnamurthy Playback Singer Kathir Director, Story, Screenplay B. Lenin Editor A.R. Rahman Original Music Composer Abhijeet Bhattacharya Playback Singer S. P. Balasubramaniam Playback Singer Febi Mani Playback Singer Swarnalatha Playback Singer Srinivas Playback Singer Udit Narayan Playback Singer Unni Menon Playback Singer