Choudhary Shambunath (Balraj Sahni) lives a wealthy lifestyle with his sister, Lajwanti (Mala Sinha), grants her every wish, and lets her have her way. Pampered Lajoo refuses to go to school, and ends up without any education. When she matures, she gets married with book-worm Deepak (Dharmendra) from the Nath family, which consists of his dad, Mahendra (Nasir Hussain), his wife (Mumtaz Begum), and an adopted son, Kishore (Amarnath). On the very first night, Deepak is aghast when he finds out that Lajoo cannot read nor write, and the next morning tells everyone. To make matters even worse, they find out that she can't even cook nor clean. Deepak eventually has a change of heart, falls in love and wants to educate her, but her in-laws are dead-set against her, so much so that one day Deepak angrily leaves the house after a heated argument with his dad, meets with an accident and passes away. A distraught and pregnant Lajoo is thrown out of the house. When she goes back to her home, she finds no one there, the door under lock and key, and guarded by the Police - the reason: Shambunath has killed a man named Jeevan (Ram Mohan) and is absconding. The question remains: What can an unskilled and uneducated woman do under these circumstances?