Years after his father disowns his adopted brother for marrying a woman of lower social standing, a young man goes on a mission to reunite his family.

Rajan Mathur (Anil Kapoor) is a Professor in Urdu literature in Dr. Zakir Hussain's College. He resides in Chandni Chowk with his activist wife, Roma Mathur (Shefali Shah). Professor Mathur comes across a young boy called Numair Qazi (Anurag Sinha) who introduces himself as a victim of communal riots in Gujarat.

Sonia and Rohit love each other but Rohit is mysteriously killed. When Sonia moves to New Zealand, she meets Raj, Rohit's lookalike who helps her trace Rohit's killer.

A gang of bikers headed by the cool-headed and arrogant Kabir is on a robbing spree in Mumbai. ACP Jai Dixit is put in charge of the case and he recruits a bumbling bike mechanic and racer to help Jai nab them.

DCP DeSilva sees a way to bring to justice the feared head of a criminal empire by recruiting a man named Vijay, who looks exactly like the crime boss. The ruse works too well, and soon Vijay finds his life in danger when DeSilva, the only one who knows his true identity, dies.