Spiritual festival on India's Yamuna river caused £5m damage

Report says it will take 10 years to fix problems caused by the event, which 'completely destroyed' the riverbed

A spiritual festival held along an Indian river last year, despite warnings by the country's environmental watchdog, caused more than 5m of damage that could take 10 years to fix, according to a report.

One of India's most celebrated gurus, Sri Sri Ravi Shankar, headlined the World Culture festival along Delhi's Yamuna river in March last year, drawing more than 3 million visitors including the Indian prime minister, Narendra Modi.