By utilizing a bio-remediation method based on the use of microbes and reed beds to clean the water, the Amarnath Shrine Board, the body that manages the pilgrimage, has put in place a new sewage treatment system at Nunwan. Pollutant levels in the Lidder river are gradually improving with the treatment of sewage and waste from the langar kitchen at high altitudes. The plastic menace, too, is countered by dedicated teams