The film stars Rajesh Khanna, Vinod Mehra, Simple Kapadia who made her debut, Rita Bhaduri, Ashok Kumar, Asrani, Asit Sen Utpal Dutt and Nirupa Roy.

The movie revolves around a rich city boy (played by Khanna), who aspires to be a musician against his father's wishes and assumes a different identity to sing for a radio station, while his songs are written by a poor friend (played by Mehra) Pyarelal quoted in an interview "Rajesh Khanna had great interest in music and a terrific sense of melody too.

"[1] Director Shakti Samanta said that although the film had an "interesting story", he felt that audiences didn't want to accept the leading man, Rajesh Khanna, doing romantic scenes with his real-life wife Dimple Kapadia's sister Simple Kapadia and this is the reason this film was just a superhit otherwise it would have been a bigger blockbuster.

While things are like this, one day Arun fights with his father and decides to leave his house for Calcutta (presently Kolkata).

He lost his son in a war and can't find the whereabouts of his daughter-in-law and grandson for which he continuously organizes searches.

All lyrics are given by Anand Bakshi and composed by Laxmikant Pyarelal Kishore Kumar got nominated for the song "Aapke Anurodh Pe" at Filmfare Awards but lost to Mohammad Rafi for Kya Hua Tera Wada.

"Aate Jaate Khoobsurat" and "Awaara Sadkon Pe" were the other blockbuster songs sung by Kishore Kumar.