Chennai, Feb. 23 -- The health condition of comrade and centenarian R Nallakannu, a veteran Communist stalwart and former CPI Tamil Nadu Secretary, has suffered set backs and his condition was said to be critical.

Mr Nallakannu, who turned 100 a couple of months back, was undergoing treatment at the Rajiv Gandhi Government General Hospital for the last 20 days due to old age related ailments.

Despite best of treatment provided by experts and doctors, his health condition has suffered setback during the last few days.

A highly respected leader by all political parties, Nallakannu, the grand old man of the Communist movement, who has deovted his entire life for the welfare and rights of the workforce, is the last surviving leaders who foun...