Geography · Indian River System

This river originates in the Great Himalayas on the eastern slopes of the Nanda Devi massif in northern Uttarakhand. Initially known by a different name, it forms the boundary between India and Nepal as it flows south-southwest. Entering the Indo-Gangetic Plain near Brahmadeo Mandi in Nepal, it is later known by another name. It ultimately joins the Ghaghara River in Uttar Pradesh after covering a distance of nearly 480 km. Major tributaries include the Dhauliganga, Goriganga, and Sarju. An important irrigation canal in northern India, completed in 1930, originates from a barrage on this river near Banbasa. Which river is being described above?