Dimapur, Aug. 2 -- Thuingaleng Muivah, general secretary of the National Socialist Council of Nagalim (Isak-Muivah), was admitted to the Christian Institute of Health Sciences and Research (CIHSR) in Nagaland's Dimapur on Friday due to health-related issues, according to sources familiar with the matter.

The 91-year-old leader is reported to be in stable condition and is currently under medical supervision. He was admitted after complaining of indigestion, diarrhoea, breathing difficulties, and other age-related ailments.

Muivah has been a key figure in the ongoing peace negotiations between the NSCN-IM and the Government of India. The NSCN-IM has been observing a ceasefire with the Centre since 1997. In 2015, the organisation signed a ...