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Prelims 2021 paper

UPSC CSE Prelims 2021 · Question 55 · India: relief, rivers & drainage

Consider the following rivers:

Prelims 2021 · Q55

India: relief, rivers & drainage Hard

Consider the following rivers:

  1. 1.Brahmani
  2. 2.Nagavali
  3. 3.Subarnarekha
  4. 4.Vamsadhara

Which of the above rise from the Eastern Ghats?

Answer & explanation

Answer: (b) 2 and 4

The Nagavali and the Vamsadhara both rise in the Eastern Ghats of Odisha, so 2 and 4 is right. The Brahmani and the Subarnarekha, by contrast, start near Nagri village in Ranchi district on the Chota Nagpur plateau of Jharkhand.

  • ✗ 1. The Brahmani, known as the South Koel in its upper reaches, originates near Nagri village in Ranchi district, Jharkhand, at about 600 m.
  • ✓ 2. The Nagavali rises in the Eastern Ghats (near Lakhabahal in Kalahandi district, Odisha) and reaches the Bay of Bengal near Srikakulam in Andhra Pradesh.
  • ✗ 3. The Subarnarekha also rises near Nagri village in Ranchi district, Jharkhand, at about 600 m elevation, and flows about 395 km to the Bay of Bengal.
  • ✓ 4. The Vamsadhara rises in the Eastern Ghats of Odisha and falls into the Bay of Bengal near Kalingapatnam in Andhra Pradesh.

Remember · Nagavali and Vamsadhara start in the Eastern Ghats; Brahmani (South Koel) and Subarnarekha both start near Nagri, Ranchi, on the Chota Nagpur plateau.

Sources

Question and answer: UPSC's official GS Paper I (2021, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·

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