Mumbai: Emraan Hashmi bid adieu to smoking a long time back but little did the actor knew he would have to chew tobacco soon. To play a foul-mouthed reporter in Dibakar Banerjee`s ‘Shanghai’, he had to re-start the habit. The director insisted that since his role required him to do it, there was no other way out. After a lot of discussions, Banerjee and Emraan came to the conclusion that the actor should chew tobacco