Chellakannu and Chandra are cousins, they loved each other since their childhood. Chandra leaves the village for studying when she is back, their family tries to marry them. Dhandapani , Chellakannu's father, is the village Panchayat headman, punishes Rajavel for his bad behaviour towards a woman. Rajavel and his father Kailasam decide to take revenge and to create a conflict between Dhandapani and Thangavel , Chandra's father. At the village Panchayat, Thangavel is punished by Dhandapani for a crime he did not commit. Kailasam and Rajavel succeed their plan. Being humiliated, Thangavel cancels his daughter's marriage. Thangavel becomes friend with Kailasam and Thangavel registers with the Panchayat headman's election. Dhandapani wins the election. Thangavel arranges Chandra's marriage with Rajavel but realizes that Rajavel is a womaniser and cancels the marriage with Dhandapani's help. The rest of the story is what happens to Chellakannu and Chandra.

Gopal is sentenced to the death penalty for killing his wife Gayathri (Vineetha). His last wish is meeting the feminist writer Tamilarasi (Nadhiya). He tells his past. Gopal was from a middle-class family and lived with his mother Sharadha (Vijayakumari) and his mentally ill sister (Vinodhini). He fell in love with, a rich city girl, Gayathri and he got married with her. Gayathri had often quarrels with Gopal because he was not rich. Finally, Gayathri removed her thaali and applied for the divorce. Heartbroken, Sharadha died of a heart attack. Gopal proceeded for his mother's cremation. Angry, he ran with a stick in fire and he discovered Gayathri in fire at her house.Tamilarasi decides at any price to save Gopal before his death.

Ayyanar is a kind-hearted person and kulfi street vendor. One day, out of pity Ayyanar gives refuge to a girl suffering amnesia and behaving like a child. Ayyanar and Aatha who is like his own mother take care of her. Ayyanar names the girl "Nila". In the meantime, the medical student Subha falls in love with Ayyanar. Living with a woman without getting married is not well seen, so Ayyanar and Nila get married. Afterward, Ayyanar and Nila live happily, Nila becomes pregnant. After her delivery, Nila regains her memory and is transferred in a better hospital. Nila sees her family and her fiancé. The real name of Nila is Ramya. She lived with her parents in Delhi and she was engaged to Ramesh. An earthquake struck and they were all separated, her family thought that she was dead. When Ayyanar comes to see his wife, Nila in the first place rejects him but she then decides to live as "Nila" with Ayyanar and their newborn baby. What transpires next forms the rest of the story.