Yamuna River (1376 Km)
- Length: 1,376 kilometers
- Origin: The Yamuna River emerges from the Yamunotri Glacier, which is located in the Uttarkashi district of Uttarakhand, in the western Himalayas.
It is the longest tributary of India and largest tributary of river Ganga by discharge. At Triveni Sangam, Prayagraj it merges with the Ganga. The right bank tributaries are Betwa, Chambal, and Ken and the left bank tributaries of Yamuna are Sharda and Hindon.
Flow: It flows primarily southwards through several states including Uttarakhand, Himachal Pradesh, Haryana, and Uttar Pradesh and merges with the Ganges at Prayagraj (Allahabad).