Aravalli Hills: India’s Ancient Shield and Its Uncertain Future - The Deep Talk - Radio Haanji
Stretching from Gujarat through Rajasthan to Haryana and Delhi, the Aravalli Hills are among the oldest surviving mountain systems on Earth, with rocks that began forming almost 2 billion years ago. These worn-down ridges quietly control dust storms, rainfall patterns, groundwater recharge, and even the heat and haze that reach Delhi-NCR. In November 2025, a new Supreme Court–backed definition declared that only hills rising at least 100 metres above local terrain would be formally recognised as “Aravalli Hills,” triggering a fierce debate about mining, urban expansion, and environmental…
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