Senior Communist Party of India (Marxist) leader Anil Biswas, who had suffered a massive brain haemorrhage on March 18, died on Sunday. He was 61.

Biswas is survived by his wife and a daughter. Dr Jayanta Bose, his attending physician, said that Biswas died at 5.25 pm.

Biswas, a member of party's politburo and CPI(M)'s West Bengal state committee secretary, was admitted to a city nursing home and underwent two surgeries for removal of blood clots in the brain. The condition of Biswas, who had been kept on life support, began deteriorating since Saturday morning.