Nearly 11,000 litres of milk were poured into Narmada river in Madhya Pradesh's Sehore district as part of a religious ritual, prompting environmentalists to flag its negative impact on the ecosystem.

This was done on the culmination of a 21-day religious event as part of a sanctification ritual concluded at Satdev village in Bherunda area, located about 90 km from the district headquarters, with a 'mahayagna' on Wednesday.