The correct option is D Zaskar
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The Indus river begins its journey near the Mansarovar Lake in Tibet. From Tibet, flowing towards west, the river enters India through Ladakh. The Zaskar ,the Nubra, the Hunza and the Shyok, are some of the tributaries that join the Indus river in the Kashmir region.
Shonath is a tributary of Mahanadi.