Consider the following rivers:
- 1.Barak
- 2.Lohit
- 3.Subansiri
Which of the above flows/flow through Arunachal Pradesh?
Answer & explanation
Answer: (b) 2 and 3 only
The Lohit and the Subansiri both flow through Arunachal Pradesh and belong to the Brahmaputra system. The Barak rises in the Manipur hills, runs along the Nagaland–Manipur border and enters Assam. It never enters Arunachal Pradesh.
- ✗ 1. The Barak rises in the Manipur hills, south of Mao in Senapati district of Manipur. It flows along the Nagaland–Manipur border and enters Assam, then continues into Bangladesh. Its course does not touch Arunachal Pradesh.
- ✓ 2. The Lohit flows through Arunachal Pradesh. Together with the Dibang, it joins the Siang about 30 km downstream of Pasighat to form the Brahmaputra.
- ✓ 3. The Subansiri rises in Tibet. About 192 km of its course lies in Arunachal Pradesh and about 190 km in Assam, where it joins the Brahmaputra.
Remember · The Barak belongs to Manipur–Assam, not Arunachal. The Lohit, Dibang and Siang all flow in Arunachal Pradesh, and the Subansiri crosses Arunachal before entering Assam.
Sources
- India-WRIS: Barak and others ↗ “The Barak River rises from the Manipur hills, south of Mao in Senapati district of Manipur at an elevation of 2,331 m. It flows then along Nagaland-Manipur border through hilly terrains and enters Assam.”
- India-WRIS: Brahmaputra basin ↗ “Out of which 192 km lie in NEFA now renamed as Arunachal Pradesh and 190 km in Assam and the rest part falls in Tibet. … Two other rivers viz. the Lohit and the Dibang join the Siang at about 30 km downstream of Pasighat to form the mighty Brahmaputra river.”
Question: UPSC Civil Services (Preliminary) 2014, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). ·
