After climbing Manaslu, Anurag Nallavelli took on his second 8,000 metre climb without supplemental oxygen. First published: https://www.firstpost.com/india/high-on-the-hills-how-anurag-nallavelli-conquered-his-fears-and-mountain-summits-10703531.html High on the hills! How Anurag Nallavelli conquered his fears and mountain…