Nanoparticles are being used nowadays to improve the mechanical properties of Fiber Reinforced polymers. In this study, the Graphene nanoplatelets were coated on the Glass fiber by Electrophoretic deposition (EPD) to enhance its interfacial mechanical properties and to establish the influence of electric field strength and process duration on the quality of deposition. The Graphene nanoplatelets (GNP) with mean particle size of 25 μm were dispersed in ethanol where the Sodium Lauryl Sulphate as a surfactance is deposited on Glass fiber substratesby an electrophoretic procedurefollowed under 100 V of DC voltage for 30 min. The enhancements in the mechanical properties were strongly depending on how well the nanoparticles dispersed and this has been proved in SEM morphology characterization. The X-ray diffraction (XRD) pattern and Raman spectroscopy confirmed the presence of Graphene composition in the composites. Subsequently, the coated glass fiber lamina was laminated using compression moulding technique. Thereby its mechanical behaviour was analyzed by tensile test, flexural (3 Point bending) test and interfacial shear stress(IFSS) test. Finally, the results demonstrate that the electrophoretic deposition is the superior technique for coating the nanoparticles for homogeneous composition, which potentially improve the mechanical properties, particularly interfacial strength up to 78.42 MPa for different applications.