He was admitted to Belle Veu Clinic in Kolkata on Tuesday after suffering a cardiac arrest.
Eighty-nine-year-old Chatterjee, who was suffering from a kidney-related ailment, was admitted to the hospital on Tuesday.
A 12-member team of doctors was keeping a constant watch on the veteran politician, the official said.
Last month, the former speaker had suffered a haemorrhagic stroke. He underwent a treatment for 40 days and was thereafter discharged.
However, his condition deteriorated last Tuesday and he had to be hospitalised again, a official said.
A ten-time Lok Sabha MP, Chatterjee was a central committee member of the CPM, which he had joined in 1968.
He was the Speaker of the Lok Sabha from 2004 to 2009.
The veteran leader was expelled from the CPM in 2008 for refusing to resign as the Speaker after his party withdrew support to the UPA-I government.
from Times of India https://ift.tt/2nAxhnv
