The Udta Punjab trailer took the nation by storm. After a long time, audiences had witnessed a trailer so hard hitting with the overtones of gritty and dark humour. But the compelling content was not the only thing that drew attention of people. One thing that ended up creating buzz was the portrayal of Biharis in the film. Alia Bhatt, who was last seen in Kapoor & Sons, plays a Bihari migrant in the film who is a drug abuser. While many thought her avatar was spot on, her characterisation didn???t go down well with many.