New Delhi, Jan. 1 -- The 2-billion-year-old mountain belt system - Aravalli range spread across Delhi, Haryana, Rajasthan and Gujarat came into limelight, when the definition of ranges contradicts the public interest.

The Aravalli Ranges are known as "Green lungs" of Delhi NCR, and serve as a vital ecological barrier, by preventing the eastward spread of the Thar Desert and recharging groundwater in semi-arid regions.

The Aravalli Range faces increasing threats due to deforestation, mining, grazing, and human encroachment. Forest lands around Sariska and Bardod Wildlife Sanctuaries were diverted before the 1980s, reducing their forest cover, according to a report of the Ministry of Environment, Forest and Climate Change.

The report fur...