The Geomorphologic Unit Hydrograph provides alternative methodology in deriving the Nash model parameters (n and  k) without depending upon the effective rainfall and stream runoff records. The sufficient data on Horton's order ratios and stream flow records of higher order at Silt Monitoring Station Singnodi watershed used to test the variability (2.35m/sec) is privotal and performs as sole factor reflecting the variations in the effective rainfall and replace it.