[3][4] The hijra song "Saj Rahi Gali" sung by Mohammed Rafi had topped the annual Binaca Geet Mala, the only countdown show at the time.

The boy develops polio and the rickshawala feels guilty after a doctor (Sanjeev Kumar) admonishes him.

In the meantime, the boy's real-life parents reconcile and turn to a police officer (Vinod Khanna) for help in finding their missing son.

The film ends with Mehmood, the actor, getting up and explaining to the audience that his death was for the camera, but polio is real and deadly and that people should get their children vaccinated.

Kunwara Baap had special appearances by several stars including Dharmendra, Hema Malini, Sanjeev Kumar, Amitabh Bachchan, Vinod Khanna, Yogita Bali, Dara Singh, Lalita Pawar and Lucky Ali.