Question

Difficulty: MediumDrainage System and Water Resources of India

Which of the following tributaries joins the Brahmaputra River from its left bank during its course through Assam?

  1. DhansiriAnswer
  2. B
    Subansiri
  3. C
    Kameng
  4. D
    Manas

Answer

Dhansiri is a left-bank tributary of the Brahmaputra River.
The Dhansiri River originates from Laisang Peak in Nagaland and flows northward to join the Brahmaputra from its south/left bank in Assam.

Step-by-Step Solution

1
Identify the orientation of the Brahmaputra River's flow.
The river flows westward through Assam after entering India from Arunachal Pradesh.
Determining flow direction establishes left and right bank orientations.
2
Classify the given rivers into left-bank and right-bank tributaries.
Dhansiri and Dibang/Lohit/Burhi Dihing join from the south (left bank), while Subansiri, Kameng, and Manas join from the north (right bank).
Tributaries originating from the southern hills (Nagaland/Assam) are left-bank tributaries.

Key Concept

Classification of Brahmaputra River Tributaries by Bank Orientation
Estimated Time:1m 0s
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