Biswas, 84, was survived by a son and a daughter.
Presently the chairman of the state control commission of the CPI(M) West Bengal unit, Biswas was admitted to the hospital a few days back and was placed under ventilation.
Biswas, a veteran CPI(M) state committee member was first elected in the Assembly in 1977. He was the youth affairs minister of the first Left Front government. Later, he was school education minister from 1982 to 2006.