RAAVAN happens to be Abhishek Bachchan's third movie with Mani Ratnam. And the actor seems to go that extra mile for the moviemaker every time.

In both YUVA and GURU, he worked hard to achieve the perfect look for the character. Abhishek's role in the films was quite appreciated, so we guess all that work did pay off.

And now, the actor is at it again. For his role in RAAVAN, Abhishek is on a strict diet and has been travelling, shooting for the movie, along with a personal trainer, Sameer Jora.

A source tells us, ''Abhishek is on a no-carb diet. And he's made sure that if he won't have carbs then other people in the unit won't either. So he doesn't let anyone have any sweets. But, he did eat a ladoo on the sly once.''