The condition of ailing All India Forward Bloc leader Ashok Ghosh, who has been on ventilator support, worsened on Wednesday, doctors here said.
Ghosh, 94, the senior - most Left Front leader in West Bengal, was on February 2 rushed to a hospital following lower respiratory tract infection.
"Ghosh remains critically ill and the prognosis is poor. He continues to be on full ventilator support. His urine output is grossly inadequate, " hospital superintendent Partho Bhattacharya said.
Ghosh's condition improved briefly in February, making the doctors temporarily withdraw the ventilator support.
For decades, Ghosh has been the West Bengal unit secretary of the party founded by Netaji Subhas Chandra Bose.