How Priyanka Chopra became Mary Kom

Priyanka has always maintained that Mary Kom was one of the hardest films of her career. And that she had to sweat it out in the gym to achieve the perfect physique to portray the Indian boxer onscreen. Her transformation had to be made from the glamorous actress to a hard hitting sportsperson. Priyanka Chopra had stated on a social networking site that Mary Kom was the hardest film of her life and that it took her two years of determination taught by the guru, Mary Kom herself.