River Origins: Himalayan vs. Non-Himalayan

The question asks to identify the river that does NOT originate from the Himalayas. Let's examine the origin of each option:

• Jhelum: This river originates from the Pir Panjal range in Kashmir, which is part of the western Himalayas.
• Yamuna: The Yamuna river originates from the Yamunotri Glacier in the lower Himalayas.
• Ganga: The Ganga river originates from the Gangotri Glacier in the Himalayas.
• Mahanadi: This river originates in the Sihawa hills of the Eastern Ghats in Chhattisgarh, not the Himalayas. It is a peninsular river.

Based on the origins, the Mahanadi river is the only one listed that is not of Himalayan origin.