The term Uttarvahini Ganga is used to refer to places where the Ganges river has a northward flow.
For the majority of its route, the Ganges flows in a generally southeasterly direction, from the gangotri glacier to its delta emptying into the Bay of Bengal.
However, there are several places where the meandering of the river leads to a northerly flow, which is considered auspicious among Hindus.
One of the holiest & historic temple of Hindu of Lord Shiva also known as UMANATH located on the bank of Uttarwahini Ganga.
The Uttarvahini Ganga's impact in the Bhagalpur region has effects on Sultanganj and Kahalgaon, which plays a pivotal role in the spiritual culture of this ancient city.