Babli (Ranbir Kapoor) is a street smart car mechanic living in a Delhi orphanage. He is charming and lives life to the fullest. He also steals cars to support his orphanage. He has no sense of right or wrong till he unwittingly hurts the love of his life, Tara (Pallavi Sharda). Babli realizes that there is no right way of doing the wrong thing. Babli sets out to fix all the wrongs in his life and he continues to be shameless about it.
Chulbul Pandey is a corrupt but golden-hearted police officer in the small town of Uttar Pradesh. He dotes on his mother but hates his stepfather and stepbrother. He is at loggerheads with the local politician, Cheddi Singh, who sets the two half brothers against one another.