Raja Rani is a 2013 Telugu romantic comedy film directed by debutant Atlee, who previously worked with Shankar as an assistant in Enthiran (2010) and Nanban (2012). Produced by AR Murugadoss and Fox Star Studios, the film features Arya and Nayantara in the lead roles while Jai, Nazriya Nazim, Santhanam and Sathyaraj appear in supporting roles.
The story begins with John (Arya) and Regina (Nayanthara) getting married at a church. John and Regina have agreed to get married just to make their parents happy. When they take their wedding vows Regina utters her lover's name 'Surya.' Upon hearing this,Regina's father (Sathyaraj) faints in the church. Regina feels sorry for her father and ends up marrying John. They live in a flat and John comes home every night drunk deliberately to disturb Regina. Their neighbors are also annoyed by this attitude of John and chides Regina one morning when this nuisance gets worse. They also try to irritate each other in every possible way. Eventually, Regina applies for transfer to stay away from John and he is not affected by this decision.
One fine night Regina falls on the ground with fits. John gets shocked and calls for an ambulance and takes Regina to the hospital, where he sees Regina being treated via electric shocks. The doctor then asks John for Regina's name and whether she had an attack before this. John fails to answer the doctor's question. The doctor then says it is important to know about your wife's health even if you do not like her. The next day John inquires Regina about her health and she reveals she was already attacked twice by fits. She begins telling how she first had fits. In which she reveals her past relationship with Surya (Jai),who is very timid and humorous. Her story begins, One fine day when she is in college, her phone fails to make calls so she calls the customer service to find out what is wrong. Surya who works at the Customer Service Center attends Regina's call. Surya is a new worker so he starts to get nervous and fumbles, irritated Regina starts to scold. Surya later calls her back to scold, listening to his friend's idea and ends up getting scolded. After that, Regina asks all her college-mates to call the customer service and prank Surya if he attends their call. Regina then comes straight to Surya's work place and says it was her fault and apologizes. The next day, Regina sends Surya a text message saying 'I love you'. Surya comes to meet her and Regina confesses her love. Love starts to bloom between the two. Surya gets selected for a cabin-crew training in the USA. They both decide to inform their parents about their relationship. However, Surya feels that his father might not approve of their relationship. Regina's father is more like a friend to her, so she requests her father to talk to Surya's father. Their marriage talks don't go as expected, hence Regina and Surya decide to get married without informing their parents. Regina waits for Surya to get married but he doesn't turn up. Regina's father feels sorry his daughter and takes Regina to Surya's house. There they both learn that Surya has already left to the US. Shocked and devastated, Regina's father has his first heart attack. A few days later Regina gets a call from Surya's friend Iyappan (Sathyan) that Surya has committed suicide in the US. Regina is heart-broken and attacked with fits. Three years later, Regina is still not able to get over her past but decides to marry John only for the sake of her father.