Abhishek Bachhan has started shooting for his upcoming movie Bob Biswas in Kolkata. The film is a spin-off of Kahaani, and features the poker-faced contract killer Bob Biswas from the Vidya Balan-starrer.

Abhishek shared the news on Instagram early on Friday. He posted a photo of a pair of old-fashioned glasses and an old Motorola handset which were used by contract killer Bob Biswas in the 2012 thriller.