The institutions that were brought under the purview of the Internal Security, Home Affairs and Disaster Management State Ministry
- All District Secretariats and Divisional Secretariats
- Sri Lanka Police
- National Police Training Institute
- Department of the Registrar General
- Department of Registration of Persons
- Department of Immigration and Emigration
- Secretariat for NGOs
- National Council for Disaster Management
- Disaster Management Center
- National Disaster Relief Services Center
- Department of Meteorology
- National Building Research Organisation
