Ranbir Kapoor is doing back to back films, as he fnished Karan Johar's 'Ae Dil Hai Mushkil' and Anurag Basu's 'Jagga Jasoos' and now hopefully he will soon start shooting of Ayan Mukerji's film called 'Dragon'. On the other hand, Sanjay Dutt biopic too was supposed to roll in June this year, following Sanjay's release from jail in February it got delayed. Now, after delay, Raju Hirani wants to start first schedule in January.