Zero: Anushka Sharma talks about her 'challenging' role

Anushka Sharma on Friday opened up about her "challenging" role in one of the most anticipated films of the year, 'Zero'.

The trailer of the film was released at a grand event here, which was attended by the star cast, including Shah Rukh Khan, Katrina Kaif and Anushka.

In the 3 minute 14 seconds-long trailer, the 'Sanju' star - whose role was kept under wraps - features as a struggling scientist on wheelchair.

Speaking at the launch, Anushka said, "I am playing a character who has a cerebral palsy. I realised it was going to be very challenging. I could emote so much as I was going through these ups and downs in the film. The only way I could emote everything I was feeling was by just really being centered and being on that chair and not move."

The 30-year-old further talked about how she prepared for her role.

"I used to just come on the set and be there and only get up when I had to go for lunch or something. Otherwise, I used to just be on that chair on the set all the time," she said.

The trailer takes you on a journey of Bauua Singh (played by SRK) - a vertically challenged man on a lookout for a bride. Katrina plays the role of an actress, battling alcoholism.

According to the makers, Bauua's experiences with these women "take him on a journey to complete his 'incompleteness' and broaden his horizons to find a purpose he never knew he had."

The Aanand L. Rai-directorial is all set to hit the big screens on December 21.