Assam GK Section
Dams on the Brahmaputra System
Compiled on 2026-01-18
Hydroelectric and multipurpose dams across the Brahmaputra basin support power, irrigation and civic water supply for Assam and neighboring Himalayan states.
Key pointers
- Listed projects span Meghalaya, Arunachal Pradesh, Assam, Nagaland, Sikkim and West Bengal, underscoring the shared nature of the basin.
- Subansiri Lower (NHPC) anchors Arunachal Pradesh's cascade, while the Teesta stages power Sikkim and the Dooars.
- Kyrdemkulai, Umtru and Doyang schemes combine hydropower with irrigation and drinking water supply for plateau towns.
- State plans highlighted in the note include additional hydel clusters such as Tawang, Kameng, Loktak, Tipaimukh, Tuibai, Tuirial and Dhaleshwari.
Key structures
Khandong Dam
Hydroelectricity
Doyang HEP Dam
Hydroelectricity; drinking water supply
Umiam Dam
Hydroelectricity
Rangit III Dam
Hydroelectricity; drinking water supply
Kyrdemkulai (Umiam Stage III) Dam
Hydroelectricity; irrigation; drinking water
Karbi Langpi (Borpani) Dam
Hydroelectricity
Ranganadi Dam
Hydroelectricity
Nongkhyllem (Umtru) Dam
Hydroelectricity
Rangpo Dam
Hydroelectricity
Rongli Dam
Hydroelectricity
Subansiri Lower HEP (NHPC)
Hydroelectricity
Teesta-V (NHPC) Dam
Hydroelectricity
Teesta-III Dam
Hydroelectricity
Teesta-III Lower Dam
Hydroelectricity
Teesta-IV Dam
Hydroelectricity
Teesta-IV Lower Dam
Hydroelectricity
Umtru Dam
Hydroelectricity; drinking water; irrigation
Kopili Hydel Power Project
Hydroelectricity
Projects by state
Arunachal Pradesh
- Tawang Hydel Power Project
- Subansiri Lower Hydel Power Project
- Ranganadi Hydel Power Project
- Paki Hydel Power Project
- Papumpap Hydel Power Project
- Dhinkrong Hydel Power Project
- Upper Lohit Hydel Power Project
- Damway Hydel Power Project
- Kameng Hydel Power Project
Sikkim
- Rangit Hydel Power Project
- Teesta Hydel Power Project
Meghalaya
- New Umtru Hydel Power Project
Nagaland
- Doyang Hydel Power Project
Manipur
- Loktak Hydel Power Project
- Tipaimukh Hydel Power Project
Mizoram
- Tuibai Hydel Power Project
- Tuirial Hydel Power Project
- Dhaleshwari Hydel Power Project