Vidya Balan's upcoming film Shakuntala Devi is an ode to the late mathematician, famously known as the "human computer". Directed by Anu Menon, the film takes us through the journey of Shakuntala Devi who broke all barriers to become one the most renowned mathematician in the world.

While the world of numbers wasn't a problem for the real Shakuntala Devi, how did the reel Shakuntala Devi got into the groove? Have a look at a glimpse of the actress' transformation into the "human computer", shared by the director Anu Menon herself: