A part of the Ganga that shot out when an arrow pierced Mumbai's soil? Or a geological formation that's 66 million years old fed by a natural aquifier? Whichever story you believe about Banganga's creation, the fact remains that it is Mumbai's holiest spot, and a place of pilgrimage for centuries. Dotting the water tank are numerous shrines, some small, some large, and hidden in and around them are several stories of the city. On our #BangangaParikrama heritage walk, we walk around the Banganga Tank to discover the secrets of Mumbai's oldest continuously-inhabited settlement.