Question 46 from UPSC CSE 2016 - Geography

Question

Which of the following is/are tributary/tributaries of Brahmaputra?
1. Dibang
2. Kameng
3. Lohit
Select the correct answer using the code given below.

IASCODEX · Accepted Answer

Correct Option: D. 1, 2, and 3

Strategy: Direct recall of major Brahmaputra tributaries in India is key. The **Dibang**, **Kameng**, and **Lohit** are all prominent tributaries joining the Brahmaputra, particularly in its Indian stretch within Arunachal Pradesh and Assam. Recognizing all three as verified tributaries leads directly to selecting all options as correct.

Key Info: ## Brahmaputra River System
* Origin: Chemayungdung glacier, Kailash Range, Tibet.
* Nomenclature: Known as Yarlung Tsangpo in Tibet. It enters India in Arunachal Pradesh as Siang or Dihang, then flows through Assam as Brahmaputra. In Bangladesh, it is known as Jamuna and later merges with the Ganga (Padma) to form the Meghna.
* Characteristics: One of the largest rivers in the world, known for its braided channels, dynamic course, and susceptibility to floods due to high rainfall in its basin.
* Major Indian stretch: Flows through Arunachal Pradesh and Assam, collecting numerous tributaries from the Himalayan foothills and the Patkai hills.
## Tributaries of Brahmaputra
### Dibang River (Sikang)
* Origin: High up in the Dibang Valley district of Arunachal Pradesh.
* Confluence: A left-bank tributary that joins the Brahmaputra (Siang) river near Pasighat in Arunachal Pradesh.
* Significance: Known for its high velocity and numerous rapids.
### Kameng River (Jia Bhoreli in Assam)
* Origin: Glacial lakes below the Gori Chen mountain on the India-China border in Tawang district, Arunachal Pradesh.
* Confluence: A major right-bank tributary that joins the Brahmaputra in Sonitpur district, Assam.
* Significance: Forms the western boundary of the Pakke Tiger Reserve and the eastern boundary of the Sessa Orchid Sanctuary. It also flows through a section bordering the Kaziranga National Park.
### Lohit River
* Origin: Eastern Tibet, flows through Arunachal Pradesh.
* Confluence: A left-bank tributary that joins the Brahmaputra (Siang) slightly downstream of the Dibang, near Pasighat, forming a wider Brahmaputra.
* Significance: Often referred to as the 'River of Blood' due to the reddish hue of its soil, especially after floods. The Dhola-Sadiya Bridge (Bhupen Hazarika Setu), India's longest bridge over water, spans the Lohit River.

IASCODEX · Answer

Option A: 1 only

IASCODEX · Answer

Option B: 2 and 3 only

IASCODEX · Answer

Option C: 1 and 3 only

Which of the following is/are tributary/tributaries of Brahmaputra? Dibang Kameng Lohit Select the correct answer using the code given below.

Which of the following is/are tributary/tributaries of Brahmaputra?

Dibang

Kameng

Lohit
Select the correct answer using the code given below.