India, Oct. 24 -- She has always had a great association with 'real' things. In fact, Vidya Balan's latest outing in Mission Mangal - based on India's Mars Mission - got her critical as well as commercial acclaim. And now, The Dirty Picture (2011) actor is busy with the biopic of late math wizard, Shakuntala Devi. In fact, Hindi filmmakers are now increasingly drawing inspiration from real life....