Pawar (86) has been put on ventilator support following deterioration in his condition, they added.
Known for his commitment to various social and trade union issues, Pawar had close associations with veteran socialist leaders such as Jaiprakash Narayan, S M Joshi and N G Gorey.
He has been a champion of the sugar cane growers and workers' cause in the sugar co-operative sector in Maharashtra.
Pune: Noted socialist and trade union leader Kishore Pawar, currently admitted to a city hospital for old age related ailments, was stated to be in a critical condition on Tuesday night, hospital and family sources said.
First Published: Wednesday, January 02, 2013, 00:03