New Delhi, Dec. 28 -- Senior Congress leader Jairam Ramesh wrote a letter to Environment Minister Bhupender Yadav on Sunday, raising pointed concerns over the redefinition of the Aravalli Hills, which restricts them to landforms with an elevation of 100 meters or more.

Calling the redefinition of the world's oldest mountain range "disastrous", he shared his most recent letter on X, which flagged concerns over the new definition and sought clarity from the Minister on four specific points.

Addressing Minister Yadav, he wrote: "There are understandably wide-spread concerns with the re-definition of the Aravalli Hills that restrict them to landforms having an elevation of 100 meters or more. In this connection, please permit me to raise four...