| Party Name | Seats |
|---|---|
| Independent (IND) | 1 |
| Sikkim Democratic Front (SDF) | 24 |
| Sikkim Sangram Parishad (SSP) | 7 |
| Total | 32 |
| Year | A.C No. | Assembly Constituency Name | Type of A.C. | Winner Candidates Name | Gender | Party | Votes | Runner-UP | Gender | Party | Votes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 1 | Yoksam | GEN | Kalawati Subba | F | SDF | 3240 | Mangalbir Subba | M | SSP | 1749 |
| 1999 | 2 | Tashiding | (ST) | Thutop Bhutia | M | SDF | 2740 | Sonam Dadul Kazi | M | SSP | 2148 |
| 1999 | 3 | Geyzing | GEN | Sher Bahadur Subedi | M | SDF | 3316 | Puspak Ram Subba | M | SSP | 2504 |
| 1999 | 4 | Dentam | GEN | Narendra Kumar Subba | M | SDF | 3112 | Padam Lall Gurung | M | SSP | 2636 |
| 1999 | 5 | Barmiok | GEN | Tulshi Pd. Pradhan | M | SDF | 2353 | Birendra Subba | M | SSP | 2020 |
| 1999 | 6 | Rinchenpong | (ST) | Ongden Tshering Lepcha | M | SDF | 3640 | Pema Kinzang Bhutia | M | SSP | 2001 |
| 1999 | 7 | Chakung | GEN | Prem Singh Tamang | M | SDF | 3572 | Tika Gurung | M | SSP | 2420 |
| 1999 | 8 | Soreong | GEN | Ram Bahadur Subba | M | SDF | 3456 | Nar Bdr. Bhandari | M | SSP | 3390 |
| 1999 | 9 | Daramdin | GEN | Ran Bahadur Subba | M | SDF | 4194 | Akar Dhoj Subba | M | SSP | 2532 |
| 1999 | 10 | Jorthang-Nayabazar | GEN | Bhoj Raj Rai | M | SDF | 4791 | Bhim Raj Rai | M | SSP | 3598 |
| 1999 | 11 | Ralong | (ST) | Dorji Dazom Bhutia | M | SDF | 2671 | Ugen Tashi Bhutia | M | SSP | 1291 |
| 1999 | 12 | Wak | GEN | Kedar Nath Rai | M | SDF | 3284 | Manoj Rai | M | SSP | 1683 |
| 1999 | 13 | Damthang | GEN | Pawan Kumar Chamling | M | SDF | 4952 | Kamal Kumar Rai | M | SSP | 1866 |
| 1999 | 14 | Melli | GEN | Girish Chandra Rai | M | SDF | 4059 | G. S. Lama | M | SSP | 2800 |
| 1999 | 15 | Rateypani - West Pendam | (SC) | Chandra Kumar Mohora | M | SDF | 4073 | Madan Kr. Cintury | M | SSP | 3115 |
| 1999 | 16 | Temi-Tarku | GEN | Garjaman Gurung | M | SDF | 4396 | Dil Kri. Bhandari | M | SSP | 3071 |
| 1999 | 17 | Central Pendam-East Pendam | GEN | Sang Dorjee Tamang | M | SSP | 4575 | Dilli Prasad Kharel | F | SDF | 4329 |
| 1999 | 18 | Rhenock | GEN | Nar Bdr. Bhandari | M | SSP | 3364 | Bedu Singh Panth | M | SDF | 2576 |
| 1999 | 19 | Regu | GEN | Karna Bdr. Chamling | M | SDF | 3413 | Krishan Bdr. Rai | M | SSP | 3253 |
| 1999 | 20 | Pathing | (ST) | Sonam Dorjee | M | SSP | 3755 | Ram Lepcha | M | SDF | 2903 |
| 1999 | 21 | Loosing Pachekhani | GEN | Jai Kr. Bhandari | M | SSP | 2826 | Vinod Pradhan | M | SDF | 2821 |
| 1999 | 22 | Khamdong | (SC) | Gopal Lamichaney | M | SDF | 4507 | Lall Bdr. Das | M | SDF | 2954 |
| 1999 | 23 | Djongu | (ST) | Sonam Gyatso Lepcha | M | SSP | 2399 | Sonam Chyoda Lepcha | M | SDF | 2228 |
| 1999 | 24 | Lachen Mangshila | (ST) | Hishey Lachungpa | M | SDF | 3772 | Nedup Tsh. Lachenpa | M | SSP | 2540 |
| 1999 | 25 | Kabi Tingda | (ST) | Thinley Tshering Bhutia | M | SDF | 2028 | T. Lachungpa | M | INC | 1418 |
| 1999 | 26 | Rakdong Tentek | (ST) | Mingma Tsh. Sherpa | M | SSP | 2823 | Danorbu Sherpa | M | SDF | 1140 |
| 1999 | 27 | Martam | (ST) | Dorjee Tsh. Lepcha | M | SDF | 4262 | Nuk Tsh. Bhutia | M | SSP | 2485 |
| 1999 | 28 | Rumtek | (ST) | Karma Tempo Namgyal Gyaltsen | M | SDF | 4326 | O.T.Bhutia | M | SSP | 4132 |
| 1999 | 29 | Assam Lingjey | (ST) | Tseten Tashi Bhutia | M | SDF | 2951 | Kunga Zangpo Bhutia | M | SSP | 2850 |
| 1999 | 30 | Ranka | (ST) | Tseten Dorjee Lepcha | M | SDF | 4274 | Pintso Chopel Lepcha | M | SSP | 3182 |
| 1999 | 31 | Gangtok | GEN | Narendra Kr. Pradhan | M | SSP | 4308 | K. B. Gurung | M | SDF | 3835 |
| 1999 | 32 | Sangha | GEN | Palden Lama | M | IND | 1309 | Namkha Gyaltsen Lama | M | INC | 370 |
| Partytype Abbreviation | Party | |
|---|---|---|
| National Parties | ||
| 1 | CPM | Communist Party of India (Marxist) |
| 2 | INC | Indian National Congress |
| State Parties | ||
| 3 | SDF | Sikkim Democratic Front |
| 4 | SSP | Sikkim Sangram Parishad |
| Independents | ||
| 5 | IND | Independent |