New Delhi, June 6 -- Prime Minister Narendra Modi planted a banyan sapling at Bhagwan Mahavir Vanasthali Park in Delhi's Central Ridge on Thursday, symbolically launching the ambitious Aravalli Green Wall project on World Environment Day. The initiative, part of the #EkPedMaaKeNaam campaign, aims to reforest the 670-kilometre Aravalli range that spans Delhi, Haryana, Rajasthan and Gujarat. Modi planted the sapling in memory of his mother, continuing a tradition he began last year when he planted a peepal tree on Environment Day. "The Aravalli range is one of the oldest on our planet, covering Gujarat, Rajasthan, Haryana and Delhi," Modi wrote on X. "Our government is committed to mitigating several environmental challenges relating to this range." The project will focus on rejuvenating areas linked with the ancient mountain range through improved water systems, dust storm mitigation and stopping the eastward expansion of the Thar desert, the PM said....