Asked how much of self-research goes into a project where he has to essay a real-life character, he said: "It involves lot of preparation on your own. It also depends on the director because it's important to work hand-in-hand to achieve the common vision." He will be seen playing an astronaut in "Chanda Mama Door Ke", for which he will commence shooting from June or July. "This project will be very big in terms of scale. I will have to undergo special training in zero gravity room and also under water," he said.