Ganges Basin (112,490 km²), West Bengal (71,485 km²), Haryana (34,341 km²), Himachal Pradesh (4,317 km²) , Delhi, Arunachal pradesh(1,484 km²), the whole of Bangladesh, Nepal and Bhutan. Several tributaries rise inside Tibet before flowing south through Nepal. The basin has a population of more than 500 million, making it the most populated river basin in the world. The basin comprises semi-arid valleys in the rain shadow north of the Himalaya, densely forested mountains south of the highest ranges, the scrubby Shiwalik foothills and the fertile Gangetic Plains. Central highlands south of the Gangetic Plain have plateaus, hills and mountains intersected by valleys
Water politics in the Jordan River basin Water quality is variable in the river basin. The three tributaries of the upper Jordan have a low salinity of about 20 ppm. The salinity of water in Lake Tiberias ranges from 240 ppm in the upper end of the lake (marginal for irrigation water), to 350 ppm (too high for sensitive citrus fruits) where it discharges back into the Jordan River. The salt comes from the saline subterranean springs. These springs pass through the beds of ancient seas and then flow into Lake Tiberias, as well as the groundwater sources that feed into the lower Jordan. Downstream of Tiberias,