Shiva, a CBI officer, goes undercover as a student to hunt down a terrorist, John Chinnappa. However, the daughter of a crime witness, Pooja, has become John's next target and Shiva must protect her.

Raghavan, a farmer, raises his brother, Vijayakumar, and gives him an education. However, when he grows up and gets married to a rich woman, Vijayakumaran conveniently forgets about his brother.

Aravindan, Chandu and Joy are best friends. Their friendship faces a testing time when Aravindan's sister falls in love with Chandu.

Unnikrishnan owns an old bus, received as a compensation for his father's road accident and he is facing lots of consequences due to the pathetic condition of the bus. The plot took a turn when a girl named Basanthi entered the bus as a nomad

Unemployed youth Appukuttan (Mohanlal) saves an heiress Chandra (Sukanya) and is mistaken for her husband. His juice vendor friend (Sreenivasan) also enters the fray and pretends to be Chandra's "husband" at her father's factory, while Appukuttan plays the same role in the hospital

Three mischievous hotel management students, Deepu, Moorthy and Kunjoonju, whose carefree lives in Pondicherry take a turn when they fall for their landlord's daughter Kamala.