Vast crowds of Hindu pilgrims in India readied on Monday to bathe in sacred waters for the Kumbh Mela festival, with organisers expecting 400 million people -- the largest gathering of humanity.
The millennia-old Kumbh Mela, a sacred show of religious piety and ritual bathing -- and a logistical challenge of staggering proportions -- is held at the site where the holy Ganges, Yamuna and the mythical Saraswati rivers meet.
