Four fairs are recognised as Kumbh Melas -- Haridwar Kumbh Mela, Allahabad Kumbh Mela, Nashik-Trimbakeshwar Simhastha and the Ujjain Simhastha

The Kumbh Mela is held once in 12 years, at a particular venue. The Kumbh Melas at Haridwar and Nashik are held three years apart while those at Nashik and Ujjain are celebrated in the same year or a year apart.