Accused of "completely destroying" the Yamuna riverbed in Delhi with its massive "World Culture Festival", Sri Sri Ravi Shankar's Art of Living foundation today dismissed a National Green Tribunal-appointed expert panel's report to the country's top environmental court as fraud. A group of seven experts has said in a report that the three-day festival in March has "completely destroyed and not simply damaged the riverbed". Art of Living hit back saying all the experts did was 'take a 45-minute walk, there was no scientific backing for damages' on the site.