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
Vaga River Vaga River The Vaga () is a river in Totemsky, Syamzhensky, and Verkhovazhsky Districts of Vologda Oblast and in Velsky, Shenkursky, and Vinogradovsky Districts of Arkhangelsk Oblast in Russia. It is a left and the biggest tributary of the Northern Dvina River. The length of the river is . The area of its basin . The main tributaries of the Vaga River are the Pezhma (left), the Vel (left), the Kuloy (right), the Ustya (right), the Puya (left), and the Led (left). For Verkhovazhsky, Velsky, and Shenkursky Districts the Vaga is the main river, its valley being heavily populated, and