The growing interest on development of biodegradable materials led to growing concern about bio-based composite materials among the bio fibers applications one of the lightweight materials. Very minor research work is available in the mechanical characterization of CGF composites. In this paper the mechanical properties like tensile strength, flexural strength, impact strength and hardness of the CGF reinforced polymer composites were investigated. Also the impact of naturally modified montmorillonite (MMT).Nano clay on mechanical properties of the CGF composites was studied. The maximum volume fraction of the Specimens is 35%. The results demonstrate that the properties of nano-based CGF composites are better than the non-nano based composites. Tri-biological behavior of the CGF composites also studies and observed that nano CGF composites are having good wear characterization