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Devayani as Indira Devi Sunil Varma as Vishwanath / X Kota Srinivasa Rao as Doctor S. J. Suryah as Cameo Appearance Ameesha Patel as Priya Raghuvaran as Scientist Aishwarya Bhaskar as Priya's Friend Sudhakar as Income Tax Officer Ali Basha as Simham Anjala Zaveri as Special Appearance Nassar as Priya's Father Brahmanandam as Satyam Ravi Babu as Satyam's Son Ramya Krishnan as Special Appearance Sanjay Swaroop as Naani's father Kiran Rathod as Special Appearance Mahesh Babu as Naani / Vijay a.k.a. Vijju

Nithyasree Mahadevan Playback Singer S. J. Suryah Director, Screenplay, Story A.R. Rahman Original Music Composer Brinda Choreographer Sreekar Prasad Editor Sunitha Sarathy Playback Singer S. P. Balasubramaniam Playback Singer Hariharan Playback Singer Harini Playback Singer Sadhana Sargam Playback Singer Sirivennela Seetharama Sastry Lyricist K. V. Guhan Director of Photography Karthik Playback Singer Vijay Prakash Playback Singer Sujatha Mohan Playback Singer Chandrabose Lyricist Shankar Mahadevan Playback Singer Manjula Ghattamaneni Producer Sanjay Swaroop Producer Raju Sundaram Choreographer Veturi Sundararama Murthy Lyricist