"He is alright at present. He is taking rest. A team of doctors is continuously monitoring him," Manish Sisodia, a close associate of Hazare told reporters.
Hazare has lost 5.6 kg since he began his fast on August 16 and traces of ketone was also found in his blood.
Hazare on Tuesday disregarded doctor's advice to be put on Intravenous (IV) drip and refused to take any medicine and warned government against trying to forcibly evict him from the protest site of Ramlila Maidan here.
The team of doctors headed by Naresh Trehan had advised Hazare to get hospitalised but the Gandhian refused to do so.
"The entire team has examined Anna Hazare. There are changes in his vital signs. We told him that he needs hospitalisation. But he refused saying I want to be here with the people," Trehan had said.
Meanwhile, another close aide of Hazare Arvind Kejriwal said they are waiting for the government's response on Tuesday's talks on their demands over the Jan Lokpal Bill.
"We are waiting for government response. We held a detailed discussion with government representative. We have already given them our demand in writing. They had told us to revert by today..." Kejriwal said.
"We want that government should accept all our demands. We have raised certain points which need to be answered by them. Both the Jan Lokpal Bill and Judicial Accountability Bill have to be passed by Parliament together," Kejriwal said when asked about when the 73-year-old Gandhian would end his fast.