Structural, Elastic and Electronic properties of Rh3V and Rh3Vx(Ni)1-x are studied by Full Potential Linearized Augmented Plane Wave(FP-LAPW) method. The basic physical parameter such as lattice constants, elastic constants, bulk modulus, shear modulus, Young’s modulus and Poisson’s ratio are reported. Furthermore, the chemical bonding properties of Rh3V and Rh3Vx(Ni)1-x discussed using Cauchy’s Pressure, Poisson’s Ratio, Pugh Rule and charge density plot. A strong directional bonding is seen between V-Rh-V atoms in Rh3V compound whereas no such directional bonding is seen in Rh3Vx(Ni)1-x compound.