Vijay, a carefree and frolicsome youth, is sent by his father Deenadayalan in Ooty to work and becoming a responsible businessman. There, he falls in love with the college student Anjali. Her brothers are dangerous criminals and they are against their love because Vijay's father is a police officer. Thereafter, Devaraj is sent to jail so his brother appoints the lawyer Karnaa who is disabled and a sensitive person. Later, Karnaa falls in love with the school teacher Amudha, after few quarrels between both. One day, Deenadayalan saw Karnaa at the court who looks like his son Vijay. In the past, he had twin boys, but abandoned one of the twin baby because he was disabled. Karnaa is upset when he knew the truth and is now determined to win the case in front of his father.
ellaichaamy (Vijayakanth) thinks the world of his three brothers, even giving up marriage when he learns that the woman he loves plans to send them to a hostel after the wedding. The brothers live with their grandmother (S. N. Lakshmi). He works hard to raise them and they too reciprocate his love and affection. The eldest of the three, Muthu (Vijayakanth again), is a cook in a small hotel, When Vellachamy learns that Muthu is in love with his childhood playmate (Meena) he goes to the city to his friend (Rajiv) with the marriage proposal. Only to be insulted! Circumstances bring Muthu to the city, to the girl's palatial bungalow where he works as a cook. The girl is arrogant and rude till she realises that Muthu is her childhood pal. And now it is she who does all the wooing and persuades her father to get her married to Muthu.