The level of pollution in the holy rivers of India is sometimes a few thousand times the amount that a human being can intake. Somehow the devout manage to drink the polluted water and not get seriously sick. It's one of these India mysteries to me.
Here a Sadhu is drinking out of a slightly less polluted river - the Narmada (less polluted in comparison to the Ganges and the Yamuna). The small town of Maheshwar, where the photo was taken, was one of the most magical places I've recently been to.