In this study, the potential of using a milling agro­waste, bengal gram husk has been assessed for the biosorption of Fe(III). In batch mode studies, adsorption was dependent on contact time, pH, initial metal ion concentration and biosorbent dosage. Adsorption followed Langmuir and Freundlich isotherm models. The infra-red spectral analysis show that several functional groups like amide, hydroxyl and carboxyl groups are available for biosorption of metal ions. Moreover, the desorption experiments show that the metals can be desorbed after adsorption and Fe(III) can be recovered. Biomass residues, like bengal gram husk have several advantages such as costly nutrients are not required for its culturing and growth (unlike microbial biomass), the processing conditions are not restricted and a wider range of operating conditions such as pH, temperature and metal concentrations are possible and metal can be desorbed and easily recovered. Finally, the use of such biomass studies can be viewed as part of the waste management strategy.