Why Delhi Needs The Aravallis: The Silent Shield That Protects NCR's Air & Water

The Aravalli range plays a critical role in Delhi's survival. As pressure mounts on these ancient hills, environmentalists warn that weakening the Aravallis could mean hotter summers, worse air quality and severe water stress for the national capital. Why are the Aravallis crucial for Delhi's micro-climate? and what happens if this natural barrier is lost? NDTV's Parmeshwar Bawa reports.