`Kochadaiyaan` centers around a war between three kings from different generations. The three kings are played by Rajnikanth, Jackie Shroff and Nassar. Rajinikanth has a double role in the film. He plays Kochadaiyaan, a loyal commander of the emperor as well as Rana whose Kochadaiyaan`s son. Kochadaiyaan is a successful commander and the emperor`s good friend. He aims to conquer the world and put it under his King`s feet.
`Kochadaiyaan` stars Shobana, Aadhi and Sarathkumar too in significant roles. The period film also marks Deepika Padukone`s debut in the Kollywood industry.