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
Bolshoy Anyuy River Bolshoy Anyuy River The Bolshoy Anyuy River or Bolshoy Anyui River (; "bolshoy" meaning "great" or "large") is a river in the Kolyma River basin in Far East Siberia. It flows roughly westwards and passes through the sparsely populated areas of Chukotka. The Malyi Anyui River joins it from the north near the Sakha Republic border and the combined river (now called the Anyuy River) properly flows about to meet the Kolyma at Nizhnekolymsk. Its length is and its basin area . Most of the basin of the Bolshoy Anyui River and its tributaries belong to the Chukotka Autonomous Okrug