The major Himalayan Rivers are the Indus, Ganges, and Brahmaputra. These rivers are long, and are joined by many large and important tributaries. Himalayan rivers have long courses from their source to sea in India Arabian Sea and Bay of Bengal. The main Himalayan river systems are those of the Indus and the Ganga-Brahmaputra-Meghna system. The Indus, which is one of the great rivers of the world, rises near Mansarovar in Tibet and flows through India, and thereafter through Pakistan, and finally falls in the Arabian Sea near Karachi that situation exists because the major Himalayan rivers, such as the Indus, the Brahmaputra, the Sutlej, and at least two headwaters of the Ganges the Alaknanda and the Bhagirathi are probably older than the mountains they traverse. The three main Himalayan Rivers are the Ganga, the Indus and the Brahmaputra. These three rivers flow towards the West and collectively form the Himalayan River System. The River Ganges emerges in the western Himalayas and flows down across northern India into Bangladesh, where it empties into the Bay of Bengal. Nearly 80% of the Ganges river basin is in India, the rest is in Nepal, China and Bangladesh. Mountain Rivers are characterized by high slope and flow velocity, insignificant depth, frequent rapids and waterfalls, as well as dominated washed out processes. The Himalayan River does intense erosion activity in its upper area and would carry a huge load of salt and sand in it as in the lower case, in the river; they have Ox Lake and any other floodplains that have many other depositional features in it.

Mountain Rivers are characterized by high slope and flow velocity, insignificant depth, frequent rapids and waterfalls, as well as dominated washed out processes. The Ganges flows south and east from the Himalayas, forming a canyon as it leaves the mountain. It winds its way through northern India, eventually emptying into the Bay of Bengal. The Ganges' many tributaries originate from the nearby countries of Nepal, Bangladesh, and China. The two major Himalayan Rivers, the Indus and the Brahmaputra originate from the north of the mountain ranges. They have cut through the mountains making gorges. The Himalayan Rivers have long courses from their source to the sea. All rivers have a starting point where water begins its flow. This source is called a headwater. The headwater can come from rainfall or snowmelt in mountains, but it can also bubble up from groundwater or form at the edge of a lake or large pond. The main Himalayan river systems are those of the Indus and the Ganga-Brahmaputra-Meghna system. The Indus, which is one of the great rivers of the world, rises near Mansarovar in Tibet and flows through India, and thereafter through Pakistan, and finally falls in the Arabian Sea near Karachi. Himalayas, the house of snow, is known to be the source of some of the most sacred and longest rivers in India. These rivers can be categorized into perennially rain-fed and snow-fed rivers and therefore, incessantly flow rounds the year. The rivers of Himalaya outpour around 70% of their waters into the sea.