Born into lethargic Fursatganj, Rakesh (Abhishek Bachchan) is a man of schemes, ideas, invention and restlessness. His small Uttar Pradesh town begins to feel too small for his king size plans. In Pankinagar, another crinkle nosed small town, Vimmi (Rani Mukerji) doesn't want to become just another young marriageable girl. In her mind she is the "Miss India" that the world can't get enough of. So, they decide to fly the coop. Somewhere along their individual journeys, Rakesh and Vimmi meet. And in a moment of mistaken truth, Bunty and Babli are born. And the world gets turned on its head!! We follow the duo through caper after caper, in which they are spiritual gurus; bureaucraft and secretary; gangster and moll; business partners; hen pecked husband and pregnant wife; vagabonds and caught-in-a-downpour lovers. We watch them run rings around rajahs, powerbrokers, shaadi bandwallahs, millionaires, investors, leaders, ministers, banjaras, elephants, explorers, hoteliers, chai boys and one very, very upset policeman, DCP Dashrath Singh (Amitabh Bachchan)! You've never met anybody like these two. Dashrath, with 35 eventful years in the service, will vouch for that!!