As the Ganges River's journey nears an end, it flows through a giant delta toward the Bay of Bengal. One of its branches carves a path through the heart of Calcutta, one of India's great cities.

Residents of Kolkata (formerly Calcutta) have criticised a sequence in The Avengers that features the city's slums. In the film, The Hulk's alter ego Dr. Bruce Banner, played by Mark Ruffalo, is seen ...