Sushant Singh Rajput to play tourist escort in 'Kedarnath'

“Preparation for me is mandatory. How else could I have a chance of actually changing my spontaneity, or giving myself enough reason to believe that I’m the character? Even as far as Chanda Mama Door Ke is concerned, I’m training on simulators, constantly working on the character, going through the theories of astrophysics. I visited NASA last month for training, and the experience was remarkable. The idea is to convince myself that I’m an astronaut or a pithoo even before the beginning of the shoot”.