He is called Vasco by his friends. For more close pals he is Thalaai. And his actual name is Vasco Da Gama. He is the son of Pathrosassan who aspired to make him a historian by naming him so.

But today he is the gang leader of Chotta Mumbai- a group who are small time conmen based in Kochi. The gang which consists of  Basheer, Tomychan, Chandrappam, Sainu and Susheelan aims only to  make enough money each day doing a little bit of swindling, cheating and  embezzlement.

They are always in colorful outfits, stylish and enjoying the life to the core. And by the end of the day they will be there to blow it all that they have managed to make. Their main victims are the hordes of foreign tourists who come flocking to the city

Vasco has two sisters - Rachel and Maria. He is extremely fond of them, and whatever he does, he will never allow giving a little pain for them.

Pathrosassan decides to get Vasco married, to tame and to keep him out of the illegal activities and for that he finds a girl-Latha Thomas, an auto rickshaw driver. She popularly known by the name parakkum Latha is determined to marry Vasco, but he denies keeping the word of his father. Now Latha is after Vasco with whom her marriage had once been planned.