The village chairman Kalingarayan (Sakthivel) and his son Rajappa (Uday Prakash) spread terror among the villagers. Whereas Kattabomman (Sarath Kumar) is an angry man who cannot tolerate injustice. He was brought up by his grandfather (Nagesh) and his widowed mother. His family and Kalingarayan’s family are in a feud for several years. Kattabomman falls in love with Kalingarayan’s daughter Priya (Vineetha) and he gets married to her without their family’s wishes. In angry, his grandfather tells their past. What transpires later forms the crux of the story.

The film begins with the young man Sakthivel (Ranjith) coming back to his village. At his return, he is respected and treated as God by the villagers, they call him Thirukkaval. Thirukkaval still hates his father Chettiar (Jaishankar), stepmother Azhamu (Kavitha), stepbrother and stepsister. The kind-hearted Thirukkaval quickly makes enemies including Munnumunuthan (Vasu Vikram), Kodumudi (Kazan Khan) and his father Chettiar. Meanwhile, Pasupathy (Ravi Shankar) and Chinna Pulla (Rajakumari) fall in love with each other. The affair is soon exposed, so Thirukkaval arranges their wedding. Shortly after, Pasupathy dies in an accident and the villagers blame the innocent Thirukkaval.
In the past, Thirukkaval lived happily with his father Chettiar, his mother Shenbaga Valli and his baby sister Chittu. Chettiar had an affair with Shenbaga Valli’s sister Azhamu and Azhamu became pregnant. Unable to bear the situation, Shenbaga Valli killed her baby daughter and committed suicide. The angry Thirukkaval injured his father’s foot and run away. He then became a child labourer to make a living.
Chinna Pulla’s mother Appayi (Manorama) passes away. Thereafter, Thirukkaval is accused of having an affair with the widow Chinna Pulla. What transpires next forms the rest of the story.

Mirasu (Senthilnathan) killed his elder brother Selvanayagam (Nizhalgal Ravi) and Selvanayagam’s wife (C. R. Saraswathi), he tried to kill his mistress Lakshmi (Kavitha) for the inheritance. The innocent Lakshmi was then sent in jail for Selvanayagam’s murder and gave birth in jail, with the help of a police officer, she escaped from jail with her son Vijay.
Many years later, Mirasu spreads terror among the villagers and rapes the village girls, his son follows his path. Poongodu (Sukanya) and her family try to flee the village but Mirasu’s henchmen intervene and Vijay (Sarath Kumar) saves them. Vijay, who comes from another village, introduces himself as an orphan. Poongodu falls in love with Vijay and he gets married to her. Finally, Vijay clashes with Mirasu. What transpires later forms the crux of the story.