SIKKIM Prime minister Kazi Lhendup Dorji 1904 Chief ministers 1975-79 Nar Bahadur Bhandari 1940 Chief minister 1979-84 Bhim Bhadur Gurung 1929 Chief minister 1984-85 Nar Bahadur Bhandari 1940 Chief minister 1979-84 Sanchman Limboo 1949 Chief minister 1995 Pawan Kumar Chamling 1950 Chief minister 1995-