The story begins in an airport, when Jignesh a.k.a. Jiggy (Nirav Mehta), Ravindran a.k.a. Rotlu (Karan Makhija), Sandhya a.k.a. Bombs (Alishka Varde) and Shaleen (Sugandha Garg) offer to tell Mala (Renuka Kunzru), Jiggy’s friend & crush, the tale of Jai and Aditi, a love story with joys and sorrows, happiness and heartbreaks, laughter, songs and fights, and…a climax at the airport. Mala is initially uninterested in the story, and hates loves stories in general, but still agrees to listen as the flight carrying the friends they have come to receive is late.
Meet Jai Singh Rathore, a.k.a. ‘Rats (Imran Khan), the most non-violent Rajput ever. Meet Aditi Mahant(Genelia D’Souza), a.k.a. ‘Meow‘, a highly aggressive, impulsive girl. She abuses. She scratches (hence the name Meow).But still Jai and Aditi are college-going best buddies. Rotlu, Jiggy, Bombs and Shaleen are also college-mates of Jai & Aditi, and a part of their group. Rotlu loves Aditi and Bombs loves Jai. However, Jai and Aditi are always so busy with each other that they overlook this. Jai and Aditi are perfect for each other. Their friends know this. Their parents know this. Everybody but the two themselves know this. Aditi dreams of a virile, macho husband, while Jai wants a sweet, romantic girl. Since the two of them don’t believe that they are in love, after finishing their college they decide to hunt for a perfect life partner for each other. Jai falls in love with Meghna (Manjari Phadnis) at first sight in a club where two psychos were misbehaving with her. He saves her, not by fighting but by tricking the two psychos, who always ride horses. Meghna always plays the game of imagination, “What’s this?” When Meghna and Jai get close to each other, Rotlu, Jiggy, Bombs and Shaleen are happy for Jai but nobody notices that Aditi was missing Jai’s company. Aditi notices changes in Jai’s behaviour.
Meghna informs Jai that her parents squabble together but cannot stay without each other. She says this is really “cute.” Jai visits Meghna’s parents. Her father is an alcoholic. Her parents always argue with each other and Jai feels uncomfortable with them. When Jai goes to meet Meghna’s parents, he misses Aditi’s surprise birthday party. She is hurt by this and acts rudely to Jai when he goes to wish her later that evening.