for now, the chancay port stands as both a beacon of opportunity and a source of uncertainty in a worldf the world's largest religious festivals starts today in india. the kumbh mela only happens every 12 years and more than 400 million hindus are expected to take part. our south asia correspondent samira hussain has more. singing. early morning, no sun on the horizon. the air is crisp. their faith keeping them warm. vinud singh and his wife sushila walking to the river bank of the ganges. the stars have finally aligned. twelve years of waiting for this sacred dip. translation: we come here because it gives us a sense i of peace and prosperity. the holy water of the ganges has the power to heal any kind of illness. this is where the ganges meets the yamuna and the mythical river saraswati, mentioned in religious texts. an auspicious time for hindus, who believe bathing in these waters now will wash away their sins. it is just the first day, in fact, the first few hours, and take a look at how many thousands of people have come to bathe. look, this isn'tjust about religion, it's about co