Mumbai Express

Mumbai Express is a 2005 Tamil comedy film directed by Singeetam Srinivasa Rao and written and produced by Kamal Haasan. It stars Kamal Haasan himself in the lead role alongside Manisha Koirala, while Nassar, Pasupathy, Sharat Saxena and Santhana Bharathi amongst others play pivotal role. The music was composed by Ilayaraaja, while Siddharth and Ashmith Kunder handled the cinematography and editing respectively. This movie was dubbed in Telugu as well with the same name.

Three amateur thieves plot to kidnap a wealthy Chettiars Santhana Bharathys son from the boys school. They do a trial run. However on the eve of the kidnap, the guy whose job is to operate a crane in this plan is hospitalized. The services of Avinasi aka Mumbai Xpress Kamal Haasan, brother of Kovai Sarala, a deaf stunt man performing daredevil bike acts is roped in. Twists and turns take place where the other two gang members are hurt and invariably our Mumbai Xpress is left to perform the task all by himself. He kidnaps a wrong boy Daddu Hardhik, the illegitimate son of Ahalya Manisha Koirala and police officer Rao Nassar, but manages to get a huge ransom from Chettiar by default.A brawl takes place between the original kidnap plannersChidambaram Pasupathy, Johnson Vaiyapuri and Avinasi in handling Ahalyas child but Avinasi delivers the child unhurt to his mother. He eavesdrops into her telecon with Rao where Rao wants to settle both the ransom and sever his ties with her. Ahalya pleads and coaxes him to help her get the ransom which Rao is willing to pay. The child takes a fancy to Avinasi and wants him to be the man in their life, and gets him to agree or else he would throw himself from a multi storied building. ........

Source: Wikipedia