Wanderlust World Wanderlust World The Ganges River flows west to east across northern India. It originates at the Gangotri Glacier (Gaumukh) in Uttarakhand, then travels ~2,525 km (1,569 mi) through the states of Uttarakhand, Uttar Pradesh, Bihar, and West Bengal before entering Bangladesh, where it becomes the Padma and joins the Brahmaputra (Jamuna) to form the Meghna, emptying into the Bay of Bengal. It is Hinduism's most sacred river.