India, Aug. 2 -- Thuingaleng Muivah, general secretary of the Isak-Muivah-led National Socialist Council of Nagalim (NSCN-IM) involved in peace talks with the central government over the protracted Naga political issue, was hospitalised on Friday over health ailments, people familiar with the matter said.

The 91-year-old pro-Naga nationalist is being treated at the Christian Institute of Health Sciences and Research (CIHSR) in Dimapur. The persons cited above said his condition is currently stable and under medical supervision. He reportedly complained of indigestion, diarrhoea, difficulty in breathing and other old-age-related issues.

The NSCN (IM) which has been in a ceasefire agreement with the government of India since 1997, had sig...