The film's central story concerns a father, Lalit Verma (Naseeruddin Shah), who is trying to organize an enormous, chaotic and expensive wedding for his daughter, for whom he has arranged a marriage with a man she has only known for a few weeks.
The bride Aditi Verma, is nervous as she has been having an affair with her married ex-boss Vikram (Sameer Arya). The film also includes several subplots.
Ria Verma (Shefali Shetty), cousin of the bride, has been abused by a trusted elderly friend of the family some years ago and steps in to prevent his abusing another young girl in the family. Wedding contractor P. K. Dubey (Vijay Raaz) falls in love with the family's maid, Alice (Tilotama Shome). The bride's brother, Varun, struggles with his family's disapproval of his longing to be a chef, a not-very highly regarded career in the Indian middle class. Ayesha, the youngest marriageable relative of the bride, flirts with cousin Rahul who has just returned from Australia.