“All rivers are living entities. The job of any river is to flow. And it flows in a most systematic and sophisticated manner. As it flows, it nurtures everything around it, everything within it. A flowing river, whether it’s gurgling, bubbling and frothing on rocks and cobbled valleys or silently meandering along its course on the plains, is a happy and healthy river. Like a lap of a mother, the river allows many living beings to make a home and live together…” These introductory lines from the recently published book “Submerged Worlds and Amazing Stories of India’s Mighty Rivers” highlights the significance of a free-flowing river.