Vast crowds of Hindu pilgrims in India bathed in sacred waters as the Kumbh Mela festival opened on Monday, with organisers expecting 400 million people -- the world's largest gathering of humanity -- to assemble over six weeks.India is the world's most populous nation, with 1.4 billion people, and so is used to large crowds.

The Kumbh Mela, a revered Hindu festival, occurs every three years in four sacred Indian locations: Haridwar, Prayagraj, Ujjain, and Nashik. Every 12 years, each site hosts the grand Maha Kumbh. This year's event will be held in Prayagraj.

The Maha Kumbh Mela is a major Hindu festival held every 12 years in Prayagraj, India. It began on January 13, 2025, and will continue until February 26, 2025. This event is expected to attract around 400 million (40 crores) visitors,

Millions of Hindu pilgrims are gathering in India to bathe in sacred waters for the six-week-long Kumbh Mela festival -- from the very old to babies, cave-dwelling monks to science teachers.The millennia-old Kumbh Mela,

India began on Monday its Maha Kumbh Mela, or Great Pitcher Festival, which is expected to draw more than 400 million visitors to the northern city of Prayagraj over six weeks, making for the largest gathering of humanity in the world.

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.

Thousands charge into icy waters to perform the holy dip ritual at India's Maha Kumbh Mela festival:::: Prayagraj, India:: Namrata Aggarwal, Hindi pilgrim from Gurugram:: “It’s been a life-changing experience and once-in-a-lifetime experience.