On Father's Day on Sunday , Bollywood star Ranbir Kapoor expressed a desire to become a father. Well , not literally but to be a part of a film in which he essays a full-fledged role of a father. The actor , who has been actively promoting his forthcoming movie "Sanju" , took the Twitter route though he usually stays away from social media. Ranbir took over the Twitter account of Fox Star Hindi to interact with his fans and celebrate Father's Day.