India's Maha Kumbh Mela, or Great Pitcher Festival, is set to be the world's largest gathering of humanity, with 400 million visitors expected at the six-week event that began this week in the northern city of Prayagraj.

The Maha Kumbh Mela, a spiritual and cultural phenomenon, has begun in Prayagraj, Uttar Pradesh, attracting an estimated 400 million visitors over six weeks. This extraordinary congregation, recognised as the world’s largest gathering of humanity,