Rajkummar Rao 

Rajkummar Rao goes to great lengths to bring authenticity to his roles. After surviving on coffee and two carrots daily for 20 days to play a starving man in 'Trapped' (2016), and then shaving off his crown for a web series on Subhash Chandra Bose, Raj consumed a large quantity of alcohol for a scene in the rom-com 'Behen Hogi Teri'. The scene portrayed his character in an inebriated state.