Consider the following pairs: National Park River flowing through the Park 1. Corbett National Park : Ganga 2. Kaziranga National Park : Manas 3. Silent Valley National Park : Kaveri Which of the above pairs is/are correctly matched?

The correct answer is D. None of the three pairs is matched correctly.

• Pair 1 is wrong. Corbett National Park in Uttarakhand is drained by the Ramganga, a tributary of the Ganga, not the Ganga itself. The park was India's first national park, set up in 1936 as Hailey National Park, and was brought under Project Tiger in 1973.
• Pair 2 is wrong. Kaziranga, the one-horned rhinoceros reserve in Assam, lies on the north bank of the Brahmaputra. The Manas is a separate park and tiger reserve further west in Assam, and it is a river that feeds the Brahmaputra. It does not flow through Kaziranga.
• Pair 3 is wrong. Silent Valley in Kerala is drained by the Kunthi, a tributary of the Bharathapuzha. The Kaveri belongs to a different river system, and it does not pass through Silent Valley.

The core concept is the link between a protected area and its river system, which matters for Environment and for Mains questions on river-based ecology and conservation. Park and river pairs are often tested in exactly this way.

Trap: aspirants pick a pair because the river is famous and sounds like it belongs to that state, for example the Ganga in Uttarakhand. Always check the specific river that drains the park.