The Maha Kumbh Mela ("great festival of the pot of nectar of immortality") is held every three years in each of four different locations, returning to each of four places every twelve years. An Ardh (half) Mela (festival) takes place six years after the Maha Kumbh in each location.
Vishnu Tika. Prayag
A group of pilgrims applying a Vishnu Tika on their forehead after having taken their Asna, the sacred bath in the Ganges river in Prayag.