He was not responding to treatment, medical superintendent Debashish Sharma had told IANS here.

Party sources said Chakraborty was also in advanced stage of cancer, but the hospital did not confirm it.

The minister was given blood transfusion Sunday night for increasing his platelet count and also underwent dialysis.

'But these interventions did not yield the desired results,' Sharma said.

West Bengal Chief Minister Buddhadeb Bhattacharjee, other senior CPI-M leaders and sportspersons visited the hospital Monday morning. A large number of admirers of the popular leader have also assembled at the hospital.