| Sl. No. | Name of Departments | Website | Remarks |
| 1 | Agriculture Department | Sikkimagrisnet.org | Website is not updated |
| 2 | Animal Husbandry & Veterinary Service | sikkim-ahvs.gov.in | Maintained under Section 4 (1) (b) RTI Act,2005 but data are not updated |
| 3 | AATI | No Website | |
| 4 | Building & Housing Department | http://www.sikkim-building.gov.in/ | Website is not accessible. |
| 5 | Birth & Death Department | ||
| 6 | Commerce & Industries Department | https://industries.sikkim.gov.in | Data are not updated |
| 7 | Cooperation Department | sikkim.gov.in/departments/cooperation-department | |
| 8 | Culture Department | http://culture.sikkim.gov.in/ | Section 4 (1) (b) RTI Act,2005 is not maintained |
| 9 | Commercial Tax Division) | http://www.sikkimtax.gov.in/ | |
| 10 | Directorate of Economics, Statistics & Monitoring & Evaluation.( DES&ME) | https://www.desmesikkim.nic.in/ | |
| 11 | Department of Personnel | http://www.sikkimdop.gov.in | Section 4 (1) (b) RTI Act,2005 is not maintained |
| 12 | Directorate of Fisheries | pmmsy.sikkim.gov.in | Website is not maintained |
| 13 | District Collector Office | ||
| 14 | Ecclesiastical Department | http://www.sikkimeccl.gov.in | Maintained under Section 4 (1) (b) RTI Act,2005 but data are not updated |
| 15 | Education Department | http://www.sikkimhrdd.org | Website data is not accessible |
| 16 | Election Department (Office of Chief Electoral Officer) | https://ceosikkim.nic.in | Maintained under Section 4 (1) (b) RTI Act,2005 but data are not updated |
| 17 | Excise Department | http://www.excise.sikkim.gov.in | Section 4 (1) (b) RTI Act,2005 is not maintained |
| 18 | Finance Department | http://www.sikkimfred.gov.in | Section 4 (1) (b) RTI Act,2005 is not maintained |
| 19 | Forest & Environment Department | http://www.sikkimforest.gov.in | |
| 20 | Food & Civil Supplies Department | http://www.sikkimfcs-cad.gov.in | |
| 21 | Gangtok Municipal Corporation | https://www.gmcsikkim.in/ | |
| 22 | Home Department | http://www.home.sikkim.gov.in/ | |
| 23 | Horticulture Department | http://www.sikkim-horti.org | |
| 24 | Health & Family Welfare Department | http://health.sikkim.gov.in/ | |
| 25 | Information & Public Relation Department | https://ipr.sikkim.gov.in/ | |
| 26 | Information Technology Department | Linked with State Portal sikkim.gov.in | |
| 27 | Internal Audit/Local Fund Audit/Finance | https://sikkim.gov.in/departments/finance-revenue-expenditure-department/local-fund-audit-division | |
| 28 | Khadi & Village | ||
| 29 | Labour Department | http://www.labour.sikkim.gov.in | |
| 30 | Land Revenue & Disaster Management Department | http://www.sikkimlrdm.gov.in | |
| 31 | Law & Parliamentary Affairs Department | https://www.sikkim.gov.in/departments/law-parliamentary-affairs-department | |
| 32 | Mines & Geology Department | http://www.sikkimmines.gov.in/ | |
| 33 | Motor Vehicle Department | ||
| 34 | Pay & Accounts Office) | www.sikkimfred.gov.in | |
| 35 | Planning & Development Department | https://sikkim.gov.in/departments/development-planning-economic-reforms-affairs-department | |
| 36 | Police Department | http://sikkimpolice.nic.in | |
| 37 | Power Department | http://www.power.sikkim.gov.in | |
| 38 | Printing & Stationery Department | Linked with State Portal sikkim.gov.in | |
| 39 | Public Health Engineering Department | http://www.sikkim-wsphed.gov.in | |
| 40 | Roads & Bridges Department | http://www.sikkim-roadsandbridges.gov.in | |
| 41 | Rural Development Department | https://rmdd.sikkim.gov.in/ | |
| 42 | Raj Bhawan | ||
| 43 | Science & Technology Department | http://www.dstsikkim.gov.in/ | |
| 44 | Sikkim State Electricity Regulatory Commission | http://www.sserc.in/ | |
| 45 | Sikkim Information Commission | https://sikkim.gov.in/departments/sikkim-information-commission | |
| 46 | Sikkim Housing & Development Board | http://www.shdb.nic.in/ | |
| 47 | Sikkim Legislative Assembly | Linked with State Portal sikkim.gov.in | |
| 48 | Sikkim Public Service Commission | http://www.spscskm.gov.in | |
| 49 | Sikkim State Pollution Board | https://skocmms.nic.in/ | |
| 50 | Sikkim State Lotteries | http://www.sikkimlotteries.com/ | |
| 51 | Sikkim Vigilance Police Department | No website | |
| 52 | Skill Development Department | https://sdedsikkim.in/ | |
| 53 | State Election Commission | http://secsikkim.com/ | |
| 54 | Social Justice & Welfare Department | http://www.sikkimsocialwelfare.gov.in | |
| 55 | Sports & Youth Affairs Department | http://www.syasikkim.org | |
| 56 | State Bank of Sikkim (SBS) | https://www.statebankofsikkim.com/ | |
| 57 | SIDICO | http://www.cosidici.com | |
| 58 | SISCO Bank | https://siscobank.com | |
| 59 | SIMFED | ||
| 60 | SABCCO | ||
| 61 | Tourism & Civil Aviation Department | http://www.sikkimtourism.gov.in | |
| 62 | Transport Department | http://www.sntd.in | |
| 63 | Urban Development Department | https://udhd.sikkim.gov.in | |
| 64 | Water Resource Department | http://sikkim-waterresources.gov.in |