Sabitri and Seeta are the older and younger daughters of a rich man. Sabitri is married to barrister Amiyanath Mukherjee. She is childless. Seeta marries an educated, unemployed person, Bibhuti Chatterjee. Their father is angered and after his death, all the property goes to Sabitri. Seeta gives birth to a male child. Sabitri loves him, and wants the child from Seeta, but she refused. One year later, Bibhuti is imprisoned prison. Seeta takes the money from Sabitri to save her husband and gives her child to Sabitri. She promises that she will not reveal the truth to anybody till her death. The baby, Shuvra grows up and enters a medical college. Amiya and Sabitri, good host and hostess, have many guests in their house. They are poor and have everything needed for living. One of them is Nirupama, a young beautiful college student. One is Mahendra, a gambler but kind. The funny Mani Shurva is in love with Nirupama. Sabitri and Shuvra have a rich bond between them. One day Sabitri receives a letter from Seeta, saying that they are coming. Shocked Sabitri, decides to keep them far from her son. Bibhuti has lost one leg and they have lost their younger son, Rajat. Bibuthi and Seeta get a shelter from Sabitri, in their other house. But destiny sends Shuvra to them. Bibhuti meets in another house. But destiny sends Shuvra takes him to the doctor and comes close to this older couple. Their thirst for a child increases, Seeta starts to visit him secretly. Sabitri, with great fear, insults them. They leave but Mahendra traces them for Sabitri. Sabitri discovers Nirupama and Shuvra's affair. She insults her. Shaken, Bibhuti has a fatal heart attack. Widow Seeta leaves the house with Nirupama. Mahendra tells the story to Shuvra, advises him to reveal the truth. Shuvra asks her mother and learns the truth. He comes to Seeta, and accepts both sister as two mothers. Nirupama returns into his life.