GINNY WEDS SUNNY is the story of a couple amidst loads of confusion and madness. Satnam Sethi aka Sunny (Vikrant Massey) lives with his father Pappi (Rajeev Gupta), mother Rita (Menka Kurup) and sister Nimmi (Mazel Vyas) in Delhi. Sunny works with his father in their family hardware store. Sunny, however, loves cooking and wants to start a restaurant named 'Tilak Nagar Tandoori Nights'. Pappi makes it clear that he'll agree to finance Sunny's dreams only after he gets married. Sunny is interested in a girl named Sanya (Venus Singh) but she backs off when she finds out that he wants to marry her only to fulfil his restaurant dream. In the same neighbourhood lives Shobha Juneja (Ayesha Raza), a matchmaker.
Sadly, she is not able to find a match for her own daughter, Simran aka Ginny (Yami Gautam). Ginny is against arranged marriage and wants to fall in love before getting hitched. Sunny has had a crush on Ginny since they were in school. When Pappi asks Shobha to find a match for Sunny, she decides to hook him up with Ginny. Sunny is more than ready, obviously. Shobha then guides him on how to win her heart. Sunny gets going but one day realizes that Ginny is still friends with Nishant Rathee (Suhail Nayyar). Both had broken up 1 Â½ years ago but are still quite close and confused about their status. Sunny gets disheartened but Shobha tells him to keep trying.
Slowly, Ginny warms up to Sunny and even invites him to join her and her friends for a trip to Mussoorie. This trip brings Ginny and Sunny even closer. There comes a moment where they are about to get intimate, with Ginny even almost agreeing to marry Sunny. Sadly, this is when Nishant lands up. He proposes marriage to Ginny. In shock, Ginny fails to utter a word and ends up wearing the ring which Nishant offers her. Sunny gets the shock of his life. What happens next forms the rest of the film.