1. General Administration

• Magisterial Branch – Law & order
• Revenue & Settlement – Land records and administration
• General Branch – Birth/Death Certificate, ST Certificate, Domicile, PRC, Permissions
• Election Branch – Voter enrollment and electoral rolls
• Development, Registration, Relief & Rehabilitation Branch

2. Infrastructure & Public Works

• PWD (Roads) – Maintenance of road connectivity
• PWD (Buildings) – Construction of government infrastructure
• PHE – Water supply and drinking water schemes
• MeECL – Electricity distribution and maintenance

3. Social Services & Welfare

• Health – Community Health Centre (CHC) & PHCs
• Education – Sub-Divisional School Education Office (SDSEO)
• Social Welfare – ICDS and Anganwadi services
• Food & Civil Supplies – Public Distribution System (PDS)

4. Agriculture & Natural Resources

• Agriculture & Horticulture – Farmer support and crop development
• Veterinary & Animal Husbandry – Livestock services
• Forests – Territorial and wildlife forest management
• Soil & Water Conservation – Erosion control and land management

5. Law Enforcement

• Police Department – Patharkhmah Police Station
• Inter-state border coordination and law enforcement

Note: Most departments at the Sub-Divisional level are headed by Sub-Divisional Officers or Junior Engineers who report to District-level authorities.