Actor Abhay Deol has left no stone unturned to make his character of an IAS officer in "Shanghai" look authentic.

He went through a complete makeover to play a 40-year-old bureaucrat: he met an IAS offier, put on weight and sported a moustache, a statement said.

"The suave actor actually met an IAS officer not only to understand their body language, but also to learn the intricacies of their job profile. Abhay does not want any stone unturned as far as his role is concerned hence he went through these lengths for his role," a source said.

The film is slated for a June 8 release.