External environmental sustainability begins with the inner sustainability of discovering the Rta within or the inner harmony as emphasized by Rishis of ageless eternal Indian tradition. VK-NARDEP gives emphasis to this inner sustainability which it provides through Yoga and other activities designed to enrich and energize every layer of the inner being starting from the physical and moving inwards to more and more subtle planes of existence. Thus sustainable technologies go hand in had with the science of yoga at our camps.