While studying for his medical exams in Darjeeling, India, Amarnath Gill sprains his leg and seeks treatment from the local healer, Harihar Thapa. Amarnath is attracted to his daughter, Chanda, and both get intimate. Amarnath promises to return, but never does. About 25 years later, Amarnath returns to Darjeeling, driving an expensive Mercedes, hoping to relax. He casually makes inquiries about Chanda and her father, and finds out that Harihar passed away long ago; Chanda got pregnant and was hastily married to a aged and invalid man, gave birth to a baby girl, subsequently became insane, and died. He also finds out that Chanda sent her daughter, Kajli, away to another town to study and become a doctor. Amarnath is shocked and full of guilt at the injustice and anguish he has caused Chanda and her family. Then he gets to meet Kajli, who is not studying medicine - but earning her living in a brothel - as a foul-mouthed prostitute. What will Dr. Gill's next step be? Will he be able to identify himself as her father? Will he accept a prostitute as his daughter?
For this movie Gulzar has aptly chosen a Gazal of Ghalib "Dil dhundhta hai phir wohi fursath ke raat din". This single song steals the show. It creates an atmosphere where a lonely person is looking for his lost soul in the valley of himalay. The films main character could have been justified by none other than Sanjeev Kumar. And a brilliant music by Madan mohan, all add to the charm.