Sagarika comes from an extremely wealthy and influential family. Her father, Raihan Chowdhury, is a successful businessman who has high hopes for her. However, Sagarika is in love with Raju, who is very poor and often can't afford to dress well. Raju loves Sagarika too and wants to marry her, so he must meet her father.
When Sagarika suggests marrying Raju to her parents, they are furious and refuse outright because they cannot accept him. Moreover, they have chosen a wealthy suitor from Chittagong for her. Not wanting to hurt her parents, Sagarika agrees to marry Akash, whom they believe to be a perfect match for her.
Akash is a principled man who believes in treating his wife with respect and honouring her sensibilities. Nevertheless, he is initially unable to win Sagarika's love, and their marriage is on the brink of collapse. However, after witnessing her husband's magnanimity in forgiving and accepting her, Sagarika realises that she has fallen in love with him.
She then leads a blissful life as an ideal wife for three years. But on their third wedding anniversary, Raju returns with the intention of winning Sagarika back. He is now a wealthy businessman and Sagarika finds herself torn between her husband and her former lover. However, she is now in love with her husband and has no wish to return to Raju. When Raju realises that she does not want to return to him, he becomes intent on ruining her life. Ultimately, though, the truth prevails when Sagarika reveals to Raju that she is pregnant with Akash's child. Raju realises his folly and accepts Mitali, his friend and business partner, into his life as she has secretly loved him all along.