Kumbh Mela is believed to be the largest gathering of humanity on the planet, held every 12 years on the banks of the Sangam, the confluence of the holy rivers Ganga, Yamuna, and the mythical Saraswati. The Kumbh Mela is the symbol to Hindus of spiritual awakening and the eternal flow of humanity.
The story of Kumbh Mela is linked to a tale in the Vedic scriptures in which the demi-gods and the demons together churned the milk ocean to produce the nectar of immortality, agreeing to share the nectar equally. Concerned about what might happen if the demons did get hold of the nectar, the demigods seized the pot and fled with it.
During the ensuing fight, the demigods hid the nectar in four places: Allahabad, Haridwar, Ujjain and Nasik. At each spot a drop of nectar was spilled. Bathing in the holy water at this time brings one closer to nirvana.