UPSC Prelims 2016 GS Paper I · Q28 of 100 Geography medium

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.

  1. (a) 1 only
  2. (b) 2 and 3 only
  3. (c) 1 and 3 only
  4. (d) 1, 2 and 3 ✓ UPSC's answer

Why the answer is (d)

• The Brahmaputra enters India as the Siang/Dihang in Arunachal Pradesh and is joined near Sadiya by the Dibang (1) and the Lohit (3) to form the Brahmaputra proper.

• The Kameng (2), called Jia Bharali in Assam, rises in Tawang district and joins the Brahmaputra near Tezpur.

• Other tributaries include the Subansiri, Manas, Teesta and Dhansiri.

• Hence 1, 2 and 3, option (d).

Why the other options are wrong

(a) 1 only
Kameng and Lohit are also tributaries.
(b) 2 and 3 only
Dibang is also a tributary.
(c) 1 and 3 only
Kameng is also a tributary.

Asked in the GS Paper I of the UPSC Civil Services Preliminary Examination 2016, held on 7 August 2016. Question and answer key: Union Public Service Commission. Explanation: UPSC Answer Check.

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