An air force pilot, upon returning home from war after being assumed dead, weds the woman he had long loved, unaware that she had been planning to marry his best friend.

After helping a stabbing victim to the hospital, a man begins to receive anonymous threats. The only way to save his wife and child is to unravel the mystery of the killer's identity.

Vijay Singh is a disgraced former Merchant-Navy officer who is branded as a coward after he abandons his crew during an emergency. Guilt-ridden and trying to forget his past, he takes up work at a coal mine where he gets trapped with other miners after a flood hits them.

Vijay Kumar is the illegitimate son of a construction baron, Raj Kumar Gupta and his first love, Shanti, whom Raj had given up in order to marry a wealthy heiress. Raj does not know of this son, who grows up and after his mother's death comes to Delhi to take revenge on the Gupta family by destroying the family's business and their relation with each other.

A ruthless gangster named Don is killed during a scuffle with the police. Since only DSP D'Silva knows of this incident, he recruits Vijay, who is a spitting image of Don, to replace the original Don and infiltrate his gang. D'Silva plans to nab the entire gang, but when he dies during a raid, the secret that Vijay is not Don is also buried with him.

Nilambhar Chakravorty belongs to a poor family, and lives in a joint family with his married brother, Pitambar, unmarried sister, Punnu, and wife, Biraj. Since his sister is of marriageable age, he arranges her marriage, and borrows some money. When Pitambar comes to know about this, he refuses to share any expense in his sister's marriage, and decides to separate, resulting in a fence being put up between their homes. Nilambher, unable to find employment, is unable to pay back the loan, and soon both he and his wife barely have enough to live on. To complicate matters further, Deodhar, a wealthy young contractor has his eye on Biraj's beauty and would like to be intimate with her, in return for money and a better life.

1969 film by Yash Chopra

1978 film by Sultan Ahmed

The enigmatic but vivid imagery of this loosely plotted film is based on a similarly evocative novel by the Italian author Antonio Tabucchi, Noturno Indiano. An old friend of the hero's has been living in Bombay with a prostitute. His friend Peter Schlemihl (Otto Tausig) is a concentration camp survivor, who went to India after being captivated by a photograph he saw there. When the prostitute writes to him in Europe asking that he rescue his friend from a mysterious malaise, he flies into India to try and help. When he gets to Bombay, he discovers that his friend has disappeared. Following the clues left behind by the friend, and based on his acquaintance with him, he journeys to Madras to speak to a Theosophist dignitary there, and then journeys on to Portugues Goa. With each step of his journey, the hero (Jean-Hugues Anglade) becomes more identified with his friend, and re-enacts in his own person the transformations he must have experienced.