War between India and China separates the lovers Kumar and Kamala. Kumar joins the Indian army while Kamala, who was born in China, joins their army.

Soundharam leaves his house and takes up work with Annamalai, a treacherous person. However, he finds himself in trouble after being falsely accused of various crimes committed by Annamalai.

Sankar is an ambitious man who wants to make it big through fair means. However, the friend he works under, Sampath, begins to use corrupt measures to make them rich.

Biographical film of Ramalinga Swamigal

Though Kumar and Shankar both love Thangam, she chooses Shankar. An enraged Kumar does everything to destroy Shankar's life but the repercussions instead affect Kumar.

Rangan (M.G.R) the very loving brother of Thangam, though only a cart puller, dreams of educating his sister, to become a doctor. So, when he learns of his sister's love with Murali (Muthuraman), a doctor, he gets them married, in a grand manner. Murali's mother, after their marriage, learns that Thangam is the daughter of Velappan, her husband's (mill owner Karunakaran) murderer. Thangam is thrown out of the house. Rangan finds out that his father, who is still languishing in jail, had been falsely implicated. He vows to bring the real culprits to book. His fiancé Valli (Jayalalitha), helps him nab the murderers. It is proved at last that justice always wins.

Pandidurai adopts military officer Jeevadurai's son, Rajaratnam, after Govindan, a criminal, kills him. Years later, Rajaratnam becomes a policeman and must take down Govindan and his henchman.

Madhavan, a lawyer and the breadwinner of his family, finds it difficult to enjoy his married life due to his family's issues.

In order to stay away from his mother and her influential demeanor, Thangam, a young and affluent feudal lord, sets off on a quest to avenge his father's death.