The correct order of the given rivers from East to West is Kosi-Gandak-Ghagara-Gomati. Kosi River drains the northern slopes of the Himalayas in Tibet and the southern slopes in Nepal. The river crosses into northern Bihar where it branches into distributaries before joining the Ganges near Kursela in Katihar district. The Gandaki River is one of the major rivers of Nepal and a left bank tributary of the Ganges in India. Ghaghara, also called Karnali is a perennial trans-boundary river originating on the Tibetan Plateau near Lake Manasarovar. The Gomti, a monsoon- and groundwater-fed river, originates from Gomat Taal near Madho Tanda, Pilibhit, and Uttar Pradesh.