#16 GANDAK
It is formed by the union of the Kali and Trisuli rivers, which rise in the Great Himalayan Range in Nepal
From this junction to the Indian border the river is called the Narayani
It enters the Ganga river opposite Patna in a place called Sonepur after a winding course of 765 km
The Burhi Gandak flows parallel to and east of the Gandak River
The upper catchment area of the river is bleak and desolate lying in the rain shadow area of the Himalayan range
The middle and the lower courses of the river flows through the V-shaped valleys, incised meanders, and have paired and unpaired terraces on either sides.
