"I'm playing cricket in the movie. So it's my conscious decision. If I have to play a cricketer's character, then I have to look like an athlete. I have to tone my body like how sportsmen kind of tone their bodies while they are on the field. They look really toned. And I think for the role I consciously look like the character," Mukherjee said.
She revealed some of the secrets of her new-found svelte look - a rigorous fitness regime. "I did yoga and weight training, did a combination of both and that kind of really worked for my body," she said.
The film is set to be released on September 18.