Rituparna Sengupta shot for Ashoke Vishwanathan's 1+1=3 at Bhawani Bhawan on Saturday. "We shot in the CID department and are extremely grateful to the police officers," said the director. Though the unit was given a limited period of time, they wrapped up the shoot with ease. Also Read: Rituparna to play cop who cracked Park Street gang-rape case The movie, which stars June, Devdut Ghosh and Ashoke himserlf, revolves around a fugitive. Rituparna's role is inspired by DIG, CID Damayanti Sen. 39886119