Kangana is not just limited to her Goddess Status as far as beauty is concerned. She is far more intellectual. Collectively she can be called as Goddess of Beauty with brains. I think FASHION script related to her role was not justified for her talent. so her mind was in conflict whether to do the movie or not. However, later on she accepted the movie. Basically because MB is an excellent director of unique movies, which more often succeeds at the Boxoffice & not the opposite.
