Lalita Bakshi is a young woman living in Amritsar, India with her family. The family is invited to a friend's wedding ceremony, where Lalita meets Will Darcy, a handsome and wealthy American who is a long-time friend of the Indian-British barrister Balraj, and Balraj's sister Kiran. Balraj is instantly attracted to Lalita’s eldest sister Jaya and likewise, Darcy is attracted to Lalita. During the wedding reception, Lalita takes a disliking to Darcy but when Balraj invites Jaya to Goa, Mr. Bakshi asks Lalita to go with them and she eventually agrees to do so. In Goa, Lalita and Darcy clash over their ideas on men and women and India's economic future. Later that night on the beach, Lalita meets Johnny Wickham, Darcy's former friend from London, and he validates her low opinion of Darcy.
The Bakshi family is visited by Kohli Saab, a family friend living in Los Angeles, who has come to India to find a "traditional woman" to marry. When Kohli Saab is attracted to Jaya, Mrs. Bakshi steers him towards Lalita, making Lalita uncomfortable. Wickham is invited to join the family and Kohli Saab at the Garba, despite Mrs. Bakshi's disapproval. Lalita happily accepts a dance from Wickham, even as Darcy and Kiran warn her against becoming involved with him. Lalita angers her mother by turning down a proposal from Kohli.
Balraj, Kiran, and Darcy are invited to the Bakshi house for dinner, where Jaya and Lalita’s younger sister Maya performs an awkward snake dance for the guests. Mrs. Bakshi furthers her guests’ discomfort by commenting loudly on Balraj and Jaya’s impending engagement and future babies.
Balraj comes to the house the following day to bid farewell to Jaya and promises to write to her from London. Youngest sister Lakhi Bakshi later announces that Lalita’s friend Chandra is marrying Kohli Saab, much to the surprise of Jaya and especially Lalita. The same night, Wickham also announces that he is leaving and promises to write to Lalita. Neither Balraj nor Wickham writes to the two older sisters, but Wickham is shown secretly writing to Lakhi. Kohli Saab and Chandra phone to invite the Bakshi family the wedding ceremony in Los Angeles. The family accepts and Jaya is excited to stopover in London hoping to see Balraj again.
In London, Kiran informs the Bakshi family that Balraj is in New York to meet potential brides, devastating Jaya, Lalita and Mrs Bakshi. At Heathrow Airport, Lakhi, Jaya, Lalita and Mrs Bakshi coincidentally run into Darcy, who is also a guest at Kohli Saab and Chandra's wedding. On board Darcy offers his First class seat to Mrs. Bakshi so he can sit next to Lalita in Economy class for the remainder of the flight. During their stay in California, Lalita's opinion of Darcy slowly improves, and the two fall in love.
At the wedding, Darcy's condescending mother, Catherine, introduces Lalita to Darcy's former girlfriend, Anne who mispronounces Lalita's name as "Lolita". Jaya and Lalita also meet Darcy's younger sister, Georgie, who tells Lalita that Balraj and Darcy are not in contact because Darcy persuaded Balraj not to marry an Indian girl with a "gold-digger" Mother. Lalita furiously realizes that Darcy is the reason why Jaya never heard from Balraj. Darcy proposes to Lalita, who angrily refuses, blaming him for Jaya's unhappiness.
Back in London, Lakhi uses the family's layover as an opportunity to sneak away and meet Wickham. Darcy apologizes to Lalita, telling her that he has gotten Balraj to reconcile with Jaya. Lalita realizes that Darcy was right about Wickham and calls for his help to find Lakhi. Darcy explains that Wickham got Georgie pregnant at age 16, tried to marry her for their family's money, and ran away when his plan did not work. They both rescue Lakhi and Lalita accepts Darcy's proposal. The film ends with a double wedding of Jaya to Balraj and Lalita to Darcy.
