The short answer

A gathering built around sacred rivers

Kumbh Mela is a periodic Hindu pilgrimage in which ascetics, monastic orders and pilgrims gather at one of four river sites believed to have been touched by a drop of the nectar of immortality. Bathing there, on the correct astrologically-determined day, is believed to cleanse sin and aid spiritual liberation.

It is not a single fixed event but a rotating one — the same ritual repeated at Prayagraj, Haridwar, Nashik and Ujjain on a roughly twelve-year cycle per city, timed by the position of Jupiter, the Sun and the Moon.

The origin story

Samudra Manthan — the churning of the ocean

Tradition holds that gods and demons once churned the cosmic ocean in search of Amrita, the nectar of immortality. In the ensuing struggle over the pot, or "kumbh," carrying that nectar, drops are said to have fallen at four earthly points — the four cities that host the Mela today.

Who takes part

The Akhadas — Kumbh's monastic orders

The ceremonial heart of any Kumbh is the procession of Akhadas — organised orders of ascetics and monks — into the water on Amrit Snan days, in a fixed order of precedence that dates back centuries.

Shaiva Akhadas

Orders devoted to Shiva, typically the first to bathe in the ceremonial sequence.

Vaishnava Akhadas

Orders devoted to Vishnu, including the Nirvani and Digambara Akhadas.

Udasin Akhadas

A smaller group of orders tracing their lineage to Guru Nanak's son, Sri Chand.

How Kumbh differs from Magh Mela and other river festivals

Not every gathering at these rivers is a Kumbh. Magh Mela is a smaller annual event held at Prayagraj in years without a Kumbh, following the same lunar calendar logic but without the Akhada processions at full scale. Ardh Kumbh is a "half" Kumbh at the midpoint of the twelve-year cycle, larger than Magh Mela but smaller than a full Purna Kumbh.

Read next

See exactly when the next Kumbh falls, or head to our sister site for a city-by-city guide to the four locations.