| SN |
Name |
Origin |
Length (km) |
Area (Sq km) |
| 1 |
Tamor |
Janak Mount. |
198 |
5800 |
| 2 |
Arun |
Tibet |
152 |
4800 |
| 3 |
Dudhkoshi |
Mahalangur Mount |
113 |
4100 |
| 4 |
Likjhu |
Rolwaling Mount. |
23 |
800 |
| 5 |
Tamakoshi |
Tibet |
90 |
2600 |
| 6 |
Sunkoshi |
Tibet |
256 |
14100 |
| 7 |
Indravati |
Lamgtang Mount. |
68 |
1200 |
|