Zimbo

Professor Chakravarty and his wife Uma (Achala Sachdev) live with their four-year-old son in the jungle where he carries out experiments. He has discovered the formula to prevent ageing. Adversity strikes when their house is attacked by lions killing him while his wife goes mad with grief. The professor's son goes missing in the melee. The story then follows the arrival of several people seventeen years later from the city.

One of them is the Professor's brother who has traveled to the jungle with his daughter in search of the missing formula and to look for the professor's son. There are villains in the group of people, wanting the formula for their own purposes. Chakravarty's son Zimbo has been brought up by the apes and the story takes a turn when they try to relocate him with Dada (Pedro the Chimpanzee) to the city.