Explanation:

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 boundary between India and Pakistan 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. Out of its total length of 1,450 km, it flows for 1,050 km in Indian territory.