Veteran Bengali actor Biplab Dasgupta, known for his roles in films such as 'Baishey Shraban', 'Gumnaami' and 'Zulfiqar', passed away on Friday aged 75 in Kolkata after a prolonged illness. Dasgupta, who had been ailing after a prostate operation, is survived by his wife and daughter. He had also worked in TV serials like 'Chemistry Mashi' and 'Jogomaya', among others.