Congress MP Jairam Ramesh has questioned the Union Environment Minister regarding the redefinition of the Aravalli Hills, specifically the new criteria restricting hills to landforms with 100 meters or more elevation. Ramesh cited the Forest Survey of India's 2010 definition, which included flatter areas and valleys, and raised concerns about potential loss of hillocks and geographical integrity. He also inquired about mining leases within the Aravalli region.