Ganga Dussehra, also known as Gangavataran, is a Hindu festival celebrating the avatarana of the Ganges. It is believed by Hindus that the holy river Ganges descended from heaven to earth on this day. From Wikipedia
Cleanliness drives launched at major ghats in Uttar Pradesh, Uttarakhand, Bihar, West Bengal, Jharkhand to prepare for June 5 observance.