| Sl.No. | Name of Chief Ministers | From | To | Party |
|---|---|---|---|---|
| 1 | Kazi Lhendup Dorjee | May 16, 1975 | Aug 18, 1979 | INC |
| (President's rule) | Aug 18, 1979 | Oct 18, 1979 | N/A | |
| 2 | Nar Bahadur Bhandari | Oct 18, 1979 | May 11, 1984 | SJP |
| 3 | B. B. Gurung | May 11, 1984 | May 25, 1984 | INC |
| (President's rule) | May 25, 1984 | Mar 8, 1985 | N/A | |
| 4 | Nar Bahadur Bhandari | Mar 8, 1985 | Jun 17, 1994 | SSP |
| 5 | Sanchaman Limboo | Jun 17, 1994 | Dec 12, 1994 | SSP |
| 6 | Pawan Kumar Chamling | Dec 12, 1994 | Incumbent | SDF |
