Gujral, 92, who has been unwell for sometime, was put on the ventilator today after his condition deteriorated. He was on dialysis for over a year now and had suffered a serious chest infection some days ago.
His son and MP Naresh Gujral said he was not well and was serious.
Hospital sources said Gujral's condition is "near stable".
Gujral was admitted to the hospital four days ago with complaints of chest pain.
SOTY, K3G, Agneepath at Marrakech festival
Case against Nitish Kumar to be heard on Nov 30
Maruti Gurgaon union backs sacked Manesar staff
China bans hospitals from turning away HIV patients
'Mukesh, Anil, Naresh Goel, Cong MP have Swiss a/cs'