Naked Hindu ascetics and pilgrims are taking holy dips in sacred rivers in the first major bathing day of the Maha Kumbh festival, which is the largest religious congregation on Earth.

The massive, fluted tree trunks are painted with bright colorful patterns signaling Prayagraj’s preparation for the 45-day Maha Kumbh festival, during which tens of millions are expected to visit. Hindu devotees will keep arriving in the north Indian city from across the country to bathe at the confluence of the Ganges,

Hindu devotees from across India flocked to the northern city of Prayagraj yesterday as the world's largest religious festival began. Over the coming 45 days, an estimated 400 million Hindus are expected to come together for Maha Kumbh Mela.