| Catchment of Dam site | 25,250 sq.km |
| Free catchment at barrage site | 4,780 Sq.Km |
| Observed Max. Flood at Barrage Site | 30.00cum. |
| Designed supper Flood at Barrage site | 49.000cum. |
| Mean Annual Rainfall | 157 Cm |
| Mean Annual Run off | 1.49 Million Ha.m |
| Design Flood ast Dam Site | |
| 1000 year return period | 27.800 Cumec |
| Maximum probable Flood | 55.540 Cumec. |
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