When a kickboxer gets attacked by his enemies and ends up bedridden, his brother sets out to fulfil his dream of winning the kickboxing championship.
Badri (Vijay) is the youngest son of a family and a careless guy, always going around girls and enjoying with them. His womanizing habits are a source of heartburn for his father (Kitty). However, his elder brother, Vetri (Riyaz Khan), a kick-boxer and his father's favorite son, is very fond of him. Janu (Bhumika Chawla), Badri's neighbor, is in love with him, but it is just one sided as Badri considers her a good friend and a source of money and cars to impress girls (Janu's father is a garage owner). He falls in love with Mamathi (Monal), a rich girl, and poses as a rich guy to impress her. However, she soon finds out Badri has lied to her. Mamathi dumps Badri and insults him in front of his father. Badri's father, tired of his son's antics, disowns him. Later Vetri is attacked by his enemies and is bedridden, unable to take part in the kick boxing championship. Badri decides to fight in his brother's place to redeem his family name as his father always wanted his son to win the kick boxing championship. So he trains hard and fights against Rohit, who happens to be Mamathi's new boyfriend. He defeats Rohit, redeems himself in front of his father's eyes and finally accepts Janu's love.—Sriram Vikram
Sri Badrinatha Moorthy aka "Badri" is a happy-go-lucky youth who spends his days roaming around with his friends Azhagu, Howrah, and Joot, ogling girls and repeatedly failing his exams. His father, Viswanathan, a cafe owner, is disgusted with his irresponsibility and constantly chides him. His older brother Vetri, who is a college-level kickboxer and Viswanathan's favourite son, on the other hand, dotes on him. Janaki, aka "Jaanu", who is Badri's neighbour and childhood friend, is in love with him, but the feeling is one-sided as Badri mainly considers her as a source of money and cars; Badri constantly borrows large amounts of money from Jaanu as well as expensive cars from her father's garage to impress girls.
One day, Badri meets Mamathi, who is a rich college girl, and poses as a wealthy industrialist's son in order to impress and love her. Mamathi falls for Badri's lies and soon expresses her love to him. But when she finds out the truth, she breaks up with him and insults him in front of Viswanathan. When Viswanathan further finds out that Badri has taken large amounts of money from Jaanu, he kicks out Badri, tired of his antics.
Badri, who is now homeless, finds support from Jaanu, who advises him to be more responsible and redeem himself in Viswanathan's eyes. He realises the love Jaanu has for him and begins to reform himself. Meanwhile, Vetri is attacked and seriously injured by his kickboxing arch-rival Rohit, who happens to be Mamathi's new boyfriend and Badri's enemy as well, thus ruling him out for the final match of the inter-collegiate kickboxing championship against Rohit. Badri decides to fight for Vetri by taking his place in the final and trains hard for it. Finally, he defeats Rohit in the final, thus winning the kickboxing championship. He dedicates the trophy to Vetri, reconciles with Viswanathan, and reciprocates Jaanu's love.