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UPSC Prelims 2005 · Environment · Wild Places

Consider the following statements: Which of the statements given above is/are correct?

  1. Silent Valley National Park is in the Nallamalai range.
  2. Pathrakkadavu Hydroelectric Project is proposed to be built near the Silent Valley National Park.
  3. The Kunthi river originates in Silent Valley’s rainforests.
Show the answer and explanation

Answer: (c) 2 and 3

The Pathrakkadavu project and the Kunthi’s source are right; the park is in the Nilgiris.

Statement by statement

1. ✗ WRONG Silent Valley is in the Nilgiri hills of the Western Ghats (Palakkad, Kerala). Nallamala is in the Eastern Ghats.

2. ✓ CORRECT The Pathrakkadavu project was proposed on the Kunthipuzha, just downstream of the park.

3. ✓ CORRECT The Kunthipuzha rises in the Silent Valley forests.

The idea

Silent Valley is a patch of untouched tropical rainforest in Palakkad district of Kerala, in the Nilgiri hills of the Western Ghats. The river Kunthipuzha begins inside it and flows out through a narrow gorge, which is why dam builders have twice looked at it.

Rainforest on the Nilgiri slopes → Kunthipuzha rises here → Flows down to join the Bharathapuzha → First dam plan dropped in 1983 → Second plan (Pathrakkadavu) proposed just outside the park

The trap

Nallamala was the answer to the previous question too — here it is put in the wrong place.

Also know

The park is the core of the Nilgiri Biosphere Reserve and the best home of the lion-tailed macaque, which depends on the fruit of tall rainforest trees. The Nallamala range is in the Eastern Ghats of Andhra Pradesh and Telangana.

🔒 Silent Valley: Nilgiris (Western Ghats), Kunthipuzha river, lion-tailed macaque.

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