Table 1 Hydrogeological information of the Himalayan tributaries of the Ganga river
River | Elevation (m) | Source | Point of Confluence with Ganga | Stretch (km) | Basin area[26] (103 km2) | Average annual discharge* (1012 l yr− 1) |
|---|---|---|---|---|---|---|
Ramganga | 3110 | Lower Kumaon Himalaya | Kannauj (Uttar Pradesh) | 596 | 32.4 | 15.2 |
| Â | Â | Lohba Village, Garhwal district | Â | Â | Â | Â |
Ghaghara | 4800 | Trans-Himalayan Tibet | Near Chhapra (Bihar) | 1080 | 128 | 94.4 |
| Â | Â | near Lake Mansarovar | Â | Â | Â | Â |
Gandak | 7620 | Dhaulagiri, Nepal-Tibet Border | Near Hajipur (Bihar) | 630 | 46.3 | 52.2 |
| Â | Â | trans-Himalayan origin | Â | Â | Â | Â |
Kosi | 7000 | Formed by the confluence of Sun | Near Kursela (Bihar) | 720 | 74.5 | 62 |
| Â | Â | Kosi, Arun Kosi, and Tamur Kosi | Â | Â | Â | Â |
| Â | Â | trans-Himalayan origin | Â | Â | Â | Â |