12 Arrested For Running Illegal Call Centre In Kolkata: Police 12 Arrested For Running Illegal Call Centre In Kolkata: Police Acting on a tip-off, Kolkata Police's Detective Department raided the call centre which was operational at a flat on the third floor of a building on Chowbaga Road. A case has been registered against the accused persons: Police (Representational) Kolkata: At least 12 people have been arrested from Tiljala area of Kolkata on the charge of running an illegal call centre, a police officer said on Thursday. Acting on a tip-off, Kolkata Police's Detective Department raided the call centre which was operational at a flat on the third floor of a building on Chowbaga Road.