Vijayraghavan Chari and Vishnu Priya are travelling in the train from Chennai to Coimbatore under the identities Abu Bakar and Aayisha. Raghava acquires the identity of Abu as he gets a ticket reserved in that name, and Priya acquires the identity of Aayisha as she is impersonating her Muslim friend with the same name for a project. Raghava helps Priya from a stalker and in course falls in love with her. She too develops feelings for him. Back in Chennai, they start to get to know each other. They assume that the other person is a Muslim, but soon, Priya feels guilty and asks Raghava to keep away from her. Saddened by this, Raghava meets an Unani doctor named Showkhat Ali and learns about Islam just for Priya's sake. Showkhat's daughter Naseema falls in love with Raghava, assuming him to be Abu. On the day of Ramzan, Priya confesses her love to Raghava, and they start a relationship. Under certain circumstances, they both come to know about their true identities. Though their family arranges their marriage, they feel that they had true love only for their Muslim counterparts. On the day of their marriage, they break up and move away. Meanwhile, Naseema learns of Raghava's marriage, and her cousin Ashraff plans for revenge. Raghava and Priya attend Priya's friend Aayisha's marriage, and they feel that they still had feelings for each other. As Raghava leaves the venue, Ashraff and his friends beat him up. Naseema stops them and confesses that she had been the one who had been at fault rather than Raghava. Priya notices the brawl, realizes her love, and hugs Raghava. Finally, they both get married.