Krish Vaishnav doesn't understand what love is. Despite various attempts of his best friend, Paulomi - who is in love with him, he fails to understand how this whole love thing works and decides to get engaged to her for her happiness. Life goes on smoothly for him until he happens to meet his soulmate Rajnibala, who is an independent, practical woman and the sole breadwinner of her family. Rajni is not much for love either, and takes marriage as a responsibility. Krish feels the connection with her at first sight and falls hard and fast. Torn between choosing his best friend and the woman he's fallen for, he chooses his best friend who encourages him to follow his heart. Rajni and Krish get married with great celebrations. Slowly, Rajni falls in love with him too. Their love is unlike anyone else's and they make each other a better person. Then why does Krish gets his wife married to another man? And why does Rajni return back as a grey-shaded woman with ill intentions for him?