Kolkata TV is a 24-hour Bengali news channel launched by SST Media in 2006. Ex ABP man Suman Chattopadhyay is responsible for its birth. Now it is owned by Kaustuv Ray, chairman of RP Group. The slogan used by the channel is Raatdin Saatdin (which means "Day-night 7-days"). The news channel is run by Calcutta-based RP Techvision (I) Pvt Ltd and known for its critical stance on... Wikipedia