Vikramaditya Motwane shared that filmmaker Anurag Kashyap wrote the dialogues of 'Udaan' in "just four nights while he was preparing for 'Gulaal'". "That was crazy. [Kashyap] would prep in the day, write dialogues at night - by hand - and I'd then type it in the next day...I've never done that again, I don't think I ever will," Motwane added.