Abar Bochhor Tirish Pore was organized in part in memory of an Indian Bengali singer, songwriter, bassist, and composer, who co-founded what progressive rock band?
Abar Bochhor Tirish Pore:  It was organized in memory of Dhurjati Chattopadhyay, Deepak Majumdar and Gautam Chattopadhyay. Gautam Chattopadhyay:  In 1975, as a leader he co-founded the progressive rock band Moheener Ghoraguli with songwriter Tapas Das, pianist Abraham Mazumdar, bassist Pradip Chatterjee, lyricist Ranjon Ghoshal, drummer Biswanath Bishu Chattopadhyay and guitarist, Tapesh Bandopadhyay.
i don't know