Which one among the following tributaries of Indus River does not originate in the Himalayas ?

The Indus River receives several tributaries throughout its course. The Gilgit, Zaskar (or Zanskar), and Hunza are explicitly classified as Himalayan tributaries [2]. Specifically, the Gilgit and Hunza join the Indus in the mountainous regions of Ladakh and Gilgit-Baltistan, while the Zaskar joins it in the Kashmir region. In contrast, the Gomal River is a right-bank tributary that joins the Indus in the plains after the river emerges from the mountains near Attock [2]. The Gomal, along with the Kurram and Tochi rivers, originates in the Sulaiman ranges located in present-day Afghanistan and Pakistan, rather than the Himalayan mountain system [2]. Therefore, while the other three options are snow-fed Himalayan rivers, the Gomal originates from the western mountain ranges beyond the Himalayas.

Sources

1. [2] CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 3: Drainage > The Indus River System > p. 18