Harish lives happily with his sister Geeta and his father Radhe Mohan. Radhe Mohan is the titular "khazanchi" (treasurer) at the Northern India Bank. Harish and Usha fall in love with each other. However, they face obstacles in their love life due to Usha's stepmother and Harish's father's death.

Calcutta-based Naval Officer Shankar Choudhry lives a wealthy lifestyle with his doctor dad, and mom. One day while returning home in a cab home from a Club, he comes an injured man, Shekhar, takes him home, has his dad nurse look after him, as well as goes to his home to notify his sister, Neela. Both Neela and he fall in love with each other. When Shekhar recovers, he returns home, and it is then that Shankar notices a change in Neela. When he questions her, she refuses to answer. Then Shekhar is shot and killed in his apartment. A Police Dectective Officer assigned to this homicide - has a lighter with the word 'S' engraved on it. This leads him to suspect three persons: One is a gangster named Shyam Sunder, second a delinquent runaway child, Sushil Kumar alias Daaku, who lives with his maternal uncle and aunt; and the third is none other than Shankar Choudhry himself.

Govind, Nazir and Joseph decide to give up the world of crime when a little girl enters their life.

A businessman's family is torn apart by an earthquake and reunited years later in a courtroom where father and sons stand opposed in the roles of accused, lawyer, and witness.

A well-known singer gives up her profession to marry a young doctor, but begins to feel neglected by her husband. The return of her former boyfriend adds fuel to the fire.

An impoverished man and his young son travel to Calcutta and look for work, in order to make money that'll save their ancestral land from being seized by a corporation.

Kedarnath is employed with a local clock/watch repair shop, owned by a parsimonious Adarshan Lala. Kedarnath goes out of his way to help a destitute woman, Maya, who husband is missing, with two daughters, Veena and Vidya. Kedarnath rents a room with them, writes letters to her on behalf of her husband, Pannalal, and even arranges the marriage of Veena with the son of Daulatram. When Maya tells him that she has no money to pay for the marriage expenses, he steals cash from his employer, and tells Maya that the money is from Pannalal. And all along telling Maya that he is a close friend of Pannalal, even though he has never met Pannalal, leave alone know him, making one think as to what devious secret Kedarnath is hiding, and what is the reason behind Pannalal's disappearance.

Bombay Police are baffled by a series of crimes - all at the hands of arch-criminal "Black Cat" who leaves his calling card at every scene of the crime. The Commissioner assigns this matter to this best plainclothes agent, Rajan. Rajan's investigations lead him to suspect Professor Gupta, who is also the brother of his girlfriend, Nita. Rajan decides to use Nita's love for him, and spies on Gupta. When Nita finds out, she is enraged at Rajan, and blames the police who she feels are covering-up their inefficiency by making a scape-goat of an innocent man. Rajan fails to prove that Gupta is somehow involved with "Black Cat", and the Commissioner gives him a deadline. If Rajan does not apprehend Black Cat within that deadline, he may be suspended or even dismissed from the police force. With no clues whatsoever as to the whereabouts of Black Cat and it's gang, Rajan has the challenge of his life, which he may not be able to fulfill.

Gauri, an orphan, is falsely accused of theft and lands up in a reformatory run by Ashok. Due to her rebelliousness, she gets into trouble. But, gradually she comes into her own with Ashok's help.

Balraj Sahani plays a professional Artist with wife Achala Sachdev and son Manoj Kumar caught in the trap of Rehman and Shashikala who for the payment of a large Life insurance policy frame him in the murder of Rehman - who escapes to a world of crime after becoming a dead man for the world.