MUMBAI, Feb. 17 -- His journey so far is the stuff dreams are made of. Siddhant Chaturvedi is still coming to terms with the fact that after Gully Boy, his life has changed completely, and that he's working with the biggest of stars now. His lineup includes a romance drama with Deepika Padukone, the sequel to Bunty Aur Babli, and a film with Katrina Kaif....