Mangifera indica (Mango) seed and seed shell powders were studied for their possible application in the removal of Cu(II) from water. The adsorption of copper(II) on the powder of Mango seed and seed shell is maximum at pH 6 and follows the Freundlich type adsorption isotherm. The over all process of adsorption is spontaneous and exothermic in nature. The total adsorption on each adsorbent (mango seed and seed shell powder) increases with increase in temperature between 30-50 degrees C and than decreases up to 60 degrees C.