Mazdoor

Mr. Sinha (Nazir Hussain) changes everything in order to maximize profits. This brings him into conflict with his employees including Dinanath Saxena. When Dinanath openly confronts Hiralal in a public meeting, Hiralal wants him to tender a written apology, but Dinanath instead resigns and decides to open his very own mill with the help of a struggling Engineer, Ashok Mathur. They do eventually succeed, go into production, hire employees, and soon earn a good reputation.

Dinanath gets his daughter, Meena, married to Ashok much to the chagrin of Smita, the daughter of multi-millionaire Kundanlal Batra, who had expected Ashok to marry her. She soon concocts a scheme to bring discord in the Sinha family, and also ensure Ashoks ruin.