He underwent drastic weight loss to play a man striving for survival in "Trapped". Now for web series "Bose", actor Rajkummar Rao has been hogging pizzas and biryani to get the pot belly that he now sports to shoot the show.

During the promotion of "Trapped", Rajkummar had said he was on a diet of black coffee and two carrots a day for about 20-22 days in order to look real for his character.

For "Bose" -- helmed by Hansal Mehta for ALT Balaji -- the actor has been working on his look for two months. He also went half bald to play the part of Netaji Subhas Chandra Bose.

He is still gaining weight for the role, and says he would have to lose it also in no time.

Building a character. Nothing gives me more high than the process of exploring someone else's life on screen 🙏🏻 pic.twitter.com/diLW4rODvk

— Rajkummar Rao (@RajkummarRao) July 5, 2017

Rajkummar, who has earlier featured in films like "Queen" and "Shahid", feels it will be easy for him to shed the extra kilos.

Giving a glimpse into his physical transformation role after role, he posted on Twitter an image with snapshots of his physique for "Behen Hogi Teri", "Trapped" and "Bose".