The Shiono and Knight method (SKM) is broadly used to decide the intensity averaged speed and boundary shear pressure in compound channel glide. Flow characteristics and behavior of flow in the boundary of flood plain and main channel is affected by the variation of parameters mainly dependent upon channel roughness, eddy viscosity and secondary current. To use the SKM, three calibrating co-efficient must be estimated: the eddy viscosity coefficient (λ), the friction factor (f), and the secondary flow coefficient (k). There are various approaches that may be applied to estimate λ, f and k, with success. However, there are still issues with calibrating these coefficients to accurately take into account secondary flow effects. Hence, the current study is directed toward formulization a computational method which can calibrate the three main factors, i.e., friction factor, eddy viscosity coefficient and secondary flow coefficient by taking into account the different parameters like channel roughness, channel geometry to give an optimum value of boundary shear stress and depth average velocity which changed into further compared against experimental data with three different channel roughness and results using CES-AES.