Vidya Balan laughs with abandon as she juggles question on math ahead of debuting as ‘the Human Computer’ in Shakuntala Devi. “You will have to watch the film for that,” she says with a big guffaw. The actor who was has battled immense criticism in the earlier phase of her career is in a happy and secure place now. Talking about what changed in her life around 2008, Vidya says, "I realised I had to be accepted by only one person which is the one in the mirror, because everyone else is not to be depended upon".