Published on Thu, Sep 24, 2009 at 02:45, Updated on Thu, Sep 24, 2009 at 02:59 in Entertainment section Dressed in a beige saree and a new hair cut to go with it, Priyanka also spoke about the challenges that she faced playing 12 roles in the film. ''I think the most difficult thing about doing that was I had had no help with prosthetics or special effects or anything, so I had