Major Rivers of Arunachal Pradesh with Map

Arunachal Pradesh is a river-rich state located in the northeastern Himalayas. It forms a major part of the Brahmaputra River’s catchment. Most rivers here start in the Eastern Himalayas and flow south or southeast into Assam, where they join the Brahmaputra.

Some important rivers of Arunachal Pradesh are the Siang, Lohit, Dibang, Subansiri, Kameng, and Tirap. In this article, we will cover all the major and minor rivers in Arunachal Pradesh with map references and key facts.

Major Rivers of Arunachal Pradesh

1. Siang River

• Origin: Angsi Glacier, Tibet (as Yarlung Tsangpo)
• Name in Arunachal: Siang
• Entry Point: Gelling (Upper Siang)
• Districts Covered: Upper Siang, East Siang
• Confluence: Joins Dibang and Lohit to form the Brahmaputra at Sadiya (Assam)
• Note: Main stem of the Brahmaputra in India.

👉 Read more: Siang River

2. Subansiri River

• Origin: Tibet (as Chayul Chu)
• Entry Point: Near Taksing
• Districts Covered: Upper Subansiri, Lower Subansiri
• Confluence: Brahmaputra near Jamurighat (Assam)
• Important Tributaries: Kamla, Chayang, Duhang
• Project: Subansiri Lower Hydroelectric Project.

👉 Full Detail: Subansiri River

3. Dibang River

• Origin: Mishmi Hills, near Indo-China border
• Districts Covered: Upper Dibang Valley, Lower Dibang Valley
• Confluence: Joins Siang near Sadiya

4. Lohit River

• Origin: Tibet (as Zayul Chu)
• Entry Point: Kibithu (Anjaw district)
• Districts Covered: Anjaw, Lohit
• Confluence: Merges with Dibang and Siang near Sadiya
• Religious Site: Parasuram Kund is located on its banks.

5. Kameng River

• Origin: Glaciers near Gori Chen mountain
• Districts Covered: Tawang, West Kameng, East Kameng
• Confluence: Joins Brahmaputra near Tezpur (Assam)
• Tributaries: Bichom, Dirang Chu, Tippi

👉 Read detail article: Kameng River

List of Minor Rivers in Arunachal Pradesh

• Damgmo Chu
• Gamri Chu
• Kamla
• Siyoni
• Dirkong
• Yamne
• Bichom River

River Flow Directions

Direction	Rivers
North to South	Siang, Subansiri, Kameng
East to West	Nyamjang Chu, Tawang Chu
Southeastward	Lohit, Noa-Dihing, Tirap

District-wise Rivers in Arunachal Pradesh

District	Major Rivers
Tawang	Tawang Chu, Nyamjang Chu
West Kameng	Kameng, Dirang Chu
Upper Subansiri	Subansiri, Kamla
Upper Siang	Siang
East Siang	Siang
Dibang Valley	Dibang
Lohit	Lohit
Anjaw	Lohit, Dalai
Changlang	Noa-Dihing, Tirap
Tirap	Tirap

Hydroelectric Projects in Arunachal Pradesh

• Subansiri Lower Project – Subansiri River
• Dibang Multipurpose Project – Dibang River
• Kameng Hydroelectric Project – Kameng River
• Lohit Hydro Project – Lohit River

For more detailed on rivers of india by states, visit👉 Rivers of India by State – With Map & Full Details