An Indian health worker cleans the water at the Sangam, the confluence of the rivers Ganges, Yamuna and mythical Saraswati, during the Maha Kumbh Mela in Allahabad, India Saturday, Jan. 26, 2013. Millions of Hindu pilgrims are expected to attend the Maha Kumbh festival, which is one of the world's largest religious gatherings that lasts 55 days and falls every 12 years. During the festival pilgrims bathe in the holy Ganges River in a ritual they believe can wash away their sins. (AP Photo/ Rajesh Kumar Singh)