Madhu, runs away with Kailash on the day of her marriage fixed by her Uncle. But Kailash is with another woman. Heartbroken, she returns to find that her Uncle has committed suicide. She leaves town and incidentally meets her friend Poonam, who has lost her husband in an accident and is on her way with her baby Munna to stay with her in-laws she has never met. Enroute, their train derails. Poonam dies not before making Madhu promise that she will assume Poonam's identity and bring-up Munna in her in-law's house. The story follows Madhu’s life with a false identity.