Ravi or "Bunnu" as he's called at home and Sandhya (Chandrakala) are childhood sweethearts despite Ravi being poor, and Sandhya being rich. Sandhya's father, who is a senior official in the Railways is posted to a distant location; Ravi and Sandhya are separated and out of contact. Many years later, Ravi has matured into a strapping young man. Not being rich or influential, Ravi finds it hard to find a job and decides to approach his friend Prakash (played by M. Rajan). Prakash is a happy-go-luck rich kid, whose family runs a large timber factory amid lush jungles, and is only too happy to hire Ravi at a generous salary (Rs.300 per month, although Ravi asks for only Rs.100).

Mr. Gupta passes away after an accident while on duty, leaving behind his ailing wife and school-going son, Ramnath. Both await for some compensation, and when they are informed that the company does not accept liability for Gupta's death, his wife falls down the stairs. and passes out. When Ramnath goes to fetch a doctor, he is knocked down and run over by a speeding car, losing the use of his left leg. When he returns from hospital, he finds that his mom has passed away, and his landlord has evicted him. Penniless and hungry, he roams the streets of Bombay and befriends a blind young man, Mohan, and both use their talents - playing and harmonica and singing respectively to earn some money. Mohan is on the look-out for his sister, Meena, who works as a Nurse in one of the hospitals and hopes to be reunited with her. Both friends befriend a ailing young girl, Manjula, and hope to get some money from her so that Ramnath can attend school.

A frightened second wife, a guilt-ridden widower, and a servant still devoted to her former mistress — all three tormented by the memory of a dead woman whose spirit appears to roam the corridors of the mansion they all reside in.

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.

After an old college friend offers him a job at an iron foundry, the upright and honest Ishwar leaves a shanty town on the outskirts of Calcutta where he lives with a group of refugees from East Bengal. With plans to forge a solid living for himself, sister Sita and Abhiram, an orphaned boy he offers a home to, Ishwar is accused of selling out and deserting his people.

A selfless young woman, the daughter of a middle-class refugee family from East Pakistan, sacrifices her own happiness for her unappreciative family.