He is playing a bootlegger in the film . He was similarly spotted doing the same and the crowd was unaware that he is The Tusshar Kapoor; he was so real in his getup that people went unnoticed and found him an ordinary book seller.
The talented actor for sure is taking a leaf from Aamirs books; we have seen Amir do several promotional stunts for his films like 3 idiots to Ghajini, which went ahead to become blockbusters and Tusshar is now going all out for his black comedy Shor in the City slated to release on 28th April.