Congo Red adsorption from an aqueous solution on Ferronia elefuntum fruit shell (FEFS) has been studied experimentally using the batch adsorption method. The operating variables are pH, initial dye concentration contact time. Adsorption isotherm (Langmuir and Freundlich) and kinetics model were studied. The adsorption capacity of FEFS was found to increasing with increase in temperature. Thermodynamics parameters such as “G, “H, and “S for adsorption were evaluated. Adsorption of Congo Red on FEFS found to be endothermic process. The aim of present work is to study the effectiveness of the adsorbent dyes from their aqueous solution and the removal of color from textile and various industrial waste water.