Varun Dhawan is experimenting with his roles now

Actor Varun Dhawan, who has played a student and new-age Govinda in his past films, will be required to portray a character several decades older than his biological age and the 26-year-old says it will be the toughest role he will get to play for a very long time.

‘In Sriram Raghavan’s film, I’ve what may probably be the most challenging role.’