When Luv (Ali Zafar) has a bad break-up with his girlfriend Piyali in London, he insists his younger brother Kush (Imran Khan) to find him a bride. Kush travels all over India to find a bride, who is suitable for his brother. However, he and his friends are initially unsuccessful. Then enters Dimple (Katrina Kaif), an outgoing & loud youngster whom Kush had met a few years back on a trip.Kush meets Dimple again when her dad (in the Indian Foreign service) invites Kush for a meeting after seeing Luv's matrimonial ad in the newspaper. Kush had met Dimple when he was back in college. He was on a trip with friends to Agra, where Dimple had organized an impromptu concert & attracted huge crowds, & was subsequently arrested by police. Dimple had spent all her youth in London & had just come back to India a yr back. Kush is impressed with the way Dimple handles herself & battles the gender stereotypes which typecast her as a person who sleeps around.In present day Dimple tells Kush that she has lived her life & wants to settle down with a good boy. She owes that much to her parents. Kush decides Dimple is the perfect bride, and after meeting each other over Skype, Dimple and Luv agree to the marriage. For the wedding preparations Dimple's dad invites Kush's entire family to a farmhouse in Delhi. Dimple & Kush spend a lot of time together on account of preparations & the associated running around Delhi. Dimple is depressed on losing her carefree life & Kush offers to help her live the last 48 free hrs of her life they way she wants. Dimple & Kush get even closer & get to know each other better. Once Luv arrives in India for the wedding, Kush is forced to step back & allow Luv to spend time with Dimple. During the wedding preparations however, Kush and Dimple realize they have fallen in love with each other. Dimple & Luv get engaged to each other. At the engagement Kush's friends also realize that he has feelings for Dimple.They come up with hilarious, crazy plans to get married, but fail in every attempt. Dimple wants to run away & elope, but Kush refuses. Dimple drugs Kush & wheels him away. Kush awakes in the middle of Rajasthan. Kush decides that they have to go back for the sake of their families. Upon return they are told that the wedding has been canceled co Dimple's simpleton brother wanted the wedding to happen from Agra, where Taj Mahal could be seen. The entire wedding party shifts to Agra. On one drunken night Luv reveals that Piyali still has feelings for him & sends him messages daily.Dimple then calls Luv's ex-girlfriend, Piyali (Tara D'Souza) and makes her believe that Luv is still in love with her. Luv then realizes that he does truly love Piyali and the two elope. When Dimple's father Dilip Dixit (Kanwaljit Singh) and Kush's father Colonel (Parikshat Sahni) find this out, they figure that the only way to protect their respect and pride is to agree Kush and Dimple to get married. However, Kush and Dimple lay out a condition. If Luv and Piyali can be accepted into the house, Kush will marry Dimple. The condition is accepted.