Gopikrishna (Murali) owns an old bus which was received as compensation for his father’s road accident. Gopi is now facing lots of consequences due to the bus’s pathetic condition. He had sold many valuable things to maintain this bus, and his friend Azhagu (Vadivelu) was his only companion and the bus’s cleaner. A mouse had eaten Azhagu’s passport and spoiled his chances of going abroad. Some part of the film’s comedy involves Azhagu running behind the mouse for revenge. A live TV show in which Gopi insults the City Traffic Commissioner (Vinu Chakravarthy) lands him in more trouble when the latter commands Gopi to leave the city with the bus. His other friends, advocates, and well-wishers try to help him with a bank loan to run a mobile kitchen (Tattukada) from his bus. The plot took a turn when a girl named Vasanthi (Radha) enters the bus as a nomad, but she was actually Gayathri, the daughter of an influential and politically powerful minister (P. Vasu) in Puducherry.