Sutlej
The Sutlej, also known as Satluj, is the longest of the five rivers of Punjab (five waters) that flows through Northern India, with its source in Tibet near Mount Kailash. It receives the Beas River in the state of Punjab, India and continues into Pakistan to join Chenab river to form Panjnad river which furthur joins Indus river at Mithankot. Sutlej was known as Shatadru or Sutudri to Indians in Vedic period and Zaradros to Greeks. At present, most of its water is diverted to irrigation canals and used up in India.
There is substantial evidence to indicate that Sutlej was once an important tributary of the Saraswati river, instead of the Indus river. Due to some natural tectonic convulsion of earth, Sutlej changed its course to join the Beas river. This resulted in drying of Saraswati, desertification of Cholistan and Sind, and abandonment of numerous ancient human settlements along the Saraswati river.