With reference to the Indus river system, of the following four rivers, three of them pour into one of them which joins the Indus direct. Among the following, which one is such river that joins the Indus direct? [2021]

With reference to the Indus river system, of the following four rivers, three of them pour into one of them which joins the Indus direct. Among the following, which one is such river that joins the Indus direct?

The Satluj rises from the Manasarovar-Rakas Lakes in western Tibet at a height of 4,570 m within 80 km of the source of the Indus. Like the Indus, it takes a north-westerly course upto the Shipki La on the Tibet-Himachal Pradesh boundary. It cuts deep gorges where it pierces the Great Himalaya and the other Himalayan ranges. Before entering the Punjab plain, it cuts a gorge in Naina Devi Dhar, where the famous Bhakra dam has been constructed. After entering the plain at Rupnagar (Ropar), it turns westwards and is joined by the Beas at Harike. From near Ferozepur to Fazilka, it forms the India-Pakistan border for nearly 120 km. During its onward journey, it receives the collective drainage of the Ravi, Chenab and Jhelum rivers. It joins the Indus a few kilometres above Mithankot. Of its total length of 1,450 km, it flows 1,050 km within Indian territory.