Wanderlust World Wanderlust World The Yamuna River—largest tributary of the Ganges—drains a 366,000 km² basin across four northern Indian states before merging at Prayagraj (Allahabad). Its 1,376 km course structures agriculture, urbanization, and ecology for ~60 million people.
Uttarakhand: Origin at Yamunotri Glacier (6,387 m) in the Bandarpunch massif. Flows through narrow Himalayan valleys, passing Yamunotri temple (Char Dham pilgrimage). Himachal Pradesh: Brief passage through southeastern corner (not always listed as major basin state). Haryana: Enters plains at Hathnikund Barrage (major diversion for Western Yamuna Canal). Flows along eastern border, feeding irrigation. Delhi: 22 km urban stretch—critically polluted (80% of Delhi's sewage enters untreated). Wazirabad Barrage diverts for drinking water. Uttar Pradesh: Longest segment (700+ km). Major cities: Mathura, Vrindavan, Agra, Etawah, Prayagraj. Confluence with Ganges at Triveni Sangam (Kumbh Mela site).
Key tributaries: Chambal (largest), Sindh, Betwa, Ken (all from central India highlands). The Yamuna's health is catastrophic in the Delhi-Agra stretch (BOD >50 mg/L, zero DO), improving downstream. The Namami Gange programme includes Yamuna cleaning. Interstate water sharing disputes (Haryana-Delhi-UP) complicate management. The river remains spiritually central (Yamuna = goddess, Krishna's consort) while ecologically imperiled.