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Correct Answer: Option (C) — Nilgiri Hills
Concept & Option Breakdown
Standard Reference Verified- Nilgiri Hills (Blue Mountains), located mainly in Tamil Nadu and bordering Kerala and Karnataka, form the junction/knot where the Eastern Ghats join the Western Ghats.
- Anamalai Hills and Cardamom Hills lie further south of the Palghat Gap entirely within the Western Ghats.
- Shevaroy Hills are situated exclusively within the Eastern Ghats in Tamil Nadu.
The Nilgiri knot is the famous physical geographical node connecting the Western and Eastern Ghat mountain systems.
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