Utt Pataang

Utt Pataang is a 2011 Bollywood Comedy thriller film, written and directed by Srikanth V. Velagaleti and features Vinay Pathak in a double role alongside, Mahie Gill, Mona Singh and Saurabh Shukla in the leading roles. The film was released onFebruary 2011, to mixed reviews and was also a commercial failure. It is inspired by Japanese film, A Stranger of Mine 2005.

Unknown to Ram, Sanjana is having an affair with gangster Lucky Sardana also played by Vinay Pathak. When Sanjana realizes that Lucky is usingcrore of his money to buy a flat for his wife Nimmi Delnaaz Paul, she absconds with the money.Sanjana decides to take Nandus help in recovering her passport from Rams place so that she can leave the country with the money. However, Nandu decides to return the money to Lucky, as he doesnt want to have anything to do with Luckys money. He returns the bag to Lucky not realizing that Sanjana has switched the bags and has hidden the money at Rams place. ........

Source: Wikipedia