New Delhi, Dec. 28 -- Congress Rajya Sabha MP Jairam Ramesh on Sunday raised questions over the re-definition of the Aravalli Hills, citing Forest Survey of India's (FSI) 2010 definition and objection to the re-definition of the mountain range.

Jairam Ramesh, in a letter to Union Environment Minister Bhupender Yadav, asked if the redefinition would result in the loss of several small hillocks and undermine the geographical integrity of the mountain range.

The Congress leader cited FSI's 2010 definition, which also included "flat areas, tabletops, depressions and valleys" as part of the Aravalli Hills.

"There are understandably widespread concerns with the re-definition of the Aravalli Hills that restrict them to landforms having an ele...