Anbu (Vishal) is a happy-go-lucky engineering student who lives with his family in Pattukottai and has fun with his friends. One day, he gets into a fracas with a local politician (Dhandapani) and his comic henchmen while trying to save a friend, and is arrested and has a case registered against him. The local court gives him conditional bail, provided that he signs the register in a Trichy police station. On the way to the police station, he sees a girl on a terrace (Motta Madi) drying clothes and falls for her. It is love at first sight for Anbu as he becomes crazy about Malar (Priyamani), a college girl, which leads to some hilarious situations. The police station, where he has to sign daily, is manned by his uncle Kandasamy (Ashish Vidyarthi), a comic inspector whose ex-lover Kamala (Urvasi) is the constable at the station. Anbu kindles his uncle’s love life and makes merry at Malar’s college, leading to funny situations. Meanwhile, Trichy is run by a powerful politician Palani (Devaraj) and his brother Guna (Ajay), who have killed the local RDO in cold blood, watched by a huge crowd of onlookers. The brothers continue with their ‘dadagiri’ until they clash with Anbu. The reason is that while trying to save Malar from a situation with Palani, Anbu ends up getting the wrath of the brothers. Although Malar’s mother wants to move away from the city, Anbu and his aunt convince her to stay and make Anbu Malar’s protector. He accompanies her and protects her from danger. After seeing his care, Malar slowly falls for Anbu and sees his true love for her. Palani causes problems for Anbu, but Anbu overcomes them and gets Palani killed by Kandasamy. Malar graduates and marries Anbu, and the story ends.