Sagar Mukherjee is a tea taster. He lives beside the house of Shipra, his neighbour. Prasad Halder is the boss of Sagar's company and also lives beside them. Sagar and Shipra fall in love and go for registry marriage without informing Shipra's parents. Prasad helps them. Shipra starts living with Sagar but Shipra's father does not accept this relationship. Shipra becomes pregnant and has to be admitted in a hospital. There she meets with Krishna who is also pregnant. Shipra and Krishna give birth to girls on the same day, but suddenly fire breaks out in the hospital, and the girls are exchanged. Only the doctor and the nurse know this. Shipra and Sagar's daughter Maya, Nirmal and Krishna's daughter Trishna grow up. One day Shipra dies due to cardiac failure. So, taking Maya, Sagar shifts to a tea-garden. There he meets Nirmal and Krishna with their son Kushal and daughter Trishna. One day it is revealed that Trishna has a heart problem. The nurse accidentally learns about the Krishna's present status in the city and her girl's problem. In a major operation Trishna dies. The nurse reveals the incident of exchange of the babies to Krishna. Krishna and Nirmal discovered Maya's origin, but Sagar does not want to handover Maya to them. By law, Nirmal and Krishna get the charge of Maya. But Maya does not want to live with them. Sagar breaks down. Kushal does not want to recognise Maya as his sister. Maya runs away with Kushal and unites with her father Sagar and Krishna and Nirmal accept it.
