- Location: Arunachal Pradesh.
- Source (Upper Course): The river originates in the Tibetan Plateau, where it is called Tsangpo/Yarlung Tsangpo.
- Indian Name: After entering Arunachal Pradesh, it is called the Siang or Dihang.
- River System: A major tributary of the Brahmaputra.
- Course: It flows through the mountainous region of Arunachal Pradesh before entering Assam.
- Confluence: In Assam, the Siang, Dibang and Lohit rivers come together to form the Brahmaputra.
- Tribe: The Adi Tribe mainly inhabits the Siang region.
- Important Names for Prelims:
- Tibet: Tsangpo / Yarlung Tsangpo
- Arunachal Pradesh: Siang / Dihang
- Assam: Joins Dibang and Lohit to form the Brahmaputra
Prelims Question
Q. Which of the following statements are correct about the Siang River?
1. It enters India through Arunachal Pradesh.
2. It is a tributary of the Brahmaputra.
3. It joins the Dibang and Lohit rivers in Assam to form the Brahmaputra.
Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: (d) 1, 2 and 3
Explanation:
Statement 1: Correct — The Siang enters India through Arunachal Pradesh.
Statement 2: Correct — The Siang is part of the Brahmaputra river system.
Statement 3: Correct — The Siang joins the Dibang and Lohit in Assam to formthe Brahmaputra




Ravi Raaz
Hassan Khan
Shadab Ali