The waters of the river are allocated to India under the Indus Water Treaty between India and Pakistan. At present, most of its water is diverted to irrigation canals and used up in India. {Link without Title} The Bhakra-Nangal dam is a huge multipurpose dam on the river.
There is substantial evidence to indicate that prior to 1700 B.C. the Sutlej was once an important tributary of the Sarasvati River , instead of the Indus River . Due to some naturally occurring Tectonic Activity , the direction of the Sutlej changed from southeast to southwest. Once flowing in its new westward direction, the river eventually joined the Beas river. As a result, the mighty Sarasvati River began to dry up, causing the desertification of Cholistan and Sindh , as well as the abandonment of numerous ancient human settlements along its banks.
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