'AndhaDhun' would be game changer for me: Ayushmann Khurrana

"I believe you don't have to change yourself with every film, establish yourself in a particular genre and then break the mold. If you're changing with every film then where's the surprise? You'll get exhausted as an actor," Ayushmann said.

The actor says he realized that 'AndhaDhun' offered him the perfect opportunity to break away from the image of playing a middle-class boy.

To Ayushmann's surprise, Raghavan liked the kind of work he was doing.

"He told me that I'm a good actor but he doesn't see me in a thriller-space. It'll be an interesting casting as nobody expects me in his film," he said.

"We did certain blind scenes...it was great experience. While I was doing it, he was like let's discuss dates now," Khurrana added.

What Ayushmann enjoyed the most, he says, is the way the 'Badlapur' director narrated the story of this forthcoming film.

"It was a very fascinating narration as he'll ask you questions in between like, 'What'll happen next?'... He wants to gauge the reaction of the actor. That keeps you on your toes and you keep thinking, what's going to happen now," he said.

In the film, Ayushmann plays a blind pianist, but picking up notes wasn't difficult for him as he's a guitarist.

"(Even) He (Raghvan) was convinced that I would learn piano as I know the chords, and all," the actor said.

Ayushmann feels in this genre, it's important for actors to do their job earnestly as there is no method to get it right.

"One has to own that character and those lines. Whatever the body language is, you have to imbibe that for your role. It is a different zone. Acting in slice-of-life is easier than this as there was no reference point. Playing blind pianist was doubly challenging," the 34-year-old actor-cum-singer says.

Releasing on October 5, 'AndhaDhun' also features Tabu and Radhika Apte in pivotal roles.