When Luv (Ali Zafar) experiences a tough breakup with his girlfriend Piyali while in London, he strongly urges his younger brother Kush (Imran Khan) to find him a suitable bride. Determined, Kush embarks on a journey across India, but his efforts initially yield no results. That's when he encounters Dimple (Katrina Kaif), a spirited and vivacious young woman he had previously met during a trip.
Their paths cross again when Dimple's father, who serves in the Indian Foreign Service, sees Luv's matrimonial advertisement in the newspaper and invites Kush for a meeting. Kush reminisces about their college days when Dimple orchestrated an impromptu concert in Agra that captivated huge crowds and ended with her arrest. Having spent most of her life in London, Dimple returned to India just a year ago.
As they reconnect, Dimple expresses her desire to settle down with a decent man, highlighting her commitment to her parents. Impressed by her confidence and resilience against societal norms, Kush believes Dimple embodies the qualities of an ideal bride. Following some virtual meetings over Skype, both Dimple and Luv agree to marry.
To kick off the wedding preparations, Dimple's father extends an invitation to Kush's family at their Delhi farmhouse. Amid the hustle and bustle, Dimple confides in Kush about her feelings of loss regarding her previous carefree lifestyle. In a heartfelt gesture, Kush offers her the chance to enjoy her last two days of freedom however she wishes, leading them to grow closer and strengthen their bond.
However, as Luv arrives in India, Kush feels the need to step aside to allow Luv to spend time with Dimple. During the wedding preparations, the realization hits them both—they have fallen in love. Even though Dimple and Luv get engaged, Kush's friends start to notice Kush's true feelings for Dimple and devise wildly funny plans to stop the wedding, though all attempts fail.
Dimple contemplates eloping but Kush resists. In a twist, Dimple drugs Kush and takes him away, waking up in the middle of Rajasthan. After coming to terms with their obligations to their families, they return home only to find out that the wedding has been derailed due to Dimple’s simpleminded brother insisting the ceremony take place in Agra, where the majestic Taj Mahal could be viewed.
While celebrating one night, Luv discloses that Piyali still harbors feelings for him and communicates with him regularly. This leads Dimple to contact Piyali (Tara D'Souza) under the pretense that Luv is also yearning for her. Eventually, Luv comes to recognize his true love for Piyali, resulting in them eloping.
Realizing the scandal this could bring, Dimple's father Dilip Dixit (Kanwaljit Singh) and Kush's father Colonel (Parikshat Sahni) must step in. To preserve family honor, they agree to Kush and Dimple's marriage. However, the couple sets a single condition: if Luv and Piyali can be accepted as part of the family, only then will Kush marry Dimple. To this, the fathers readily agree, setting the stage for an unexpected but fascinating resolution.
