In Pune, middle-aged Nirmala Gupta, wife of Dwaraka Prasad Gupta and mother of Dr. Inder Gupta, is a strict disciplinarian and runs her household by laws. Everyone in the house, including Inder and Dwaraka Prasad, follow her laws even though they do not approve of them. Soon, she fixes the marriage of her second son Chander Gupta with Anju Dayal, who is from Mumbai and is the daughter of the rich widower Ram Dayal and is the elder sister of Manju Dayal. After Chander and Anju's marriage, Manju comes to visit Anju for some months. Being a playful girl, she quickly gets the disapproval of Nirmala but Inder falls in love with her. Manju also befriends Dwaraka Prasad and gets the trust of everyone in the house except Nirmala. One day, over Inder, Dwaraka Prasad and other family members, Manju performs a small play highlighting the tyranny of Nirmala who was not believed to be at home at that time but she accidentally sees the play. She gets hurt as everyone thinks her a dictator even though she does good to the family members. Moreover, the fact that everyone did not feel free with her but felt free with Manju who is an outsider, hurts her more. The next day, except Manju, Nirmala and Dwaraka Prasad, Inder and other family members leave the house for some days for a wedding. Manju then apologises to Nirmala but she instead banishes her from her house. Seeing this, Dwaraka Prasad loses his temper and he confronts Nirmala which causes him to get a serious heart attack. Nirmala gets tensed but Manju acts timely and saves Dwaraka Prasad. At last, Nirmala understands Manju's character. However, when Inder and other family members return home, Manju leaves the house but Inder follows her to the railway station with Nirmala who stops her. In the end, Inder and Manju get married.
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