The heavy metals are exceptionally responsive at low fixations and can accumulate in the food web, causing extreme general wellbeing concerns. Remediation utilizing customary physical and substance techniques is uneconomical and creates huge volumes of compound waste. Bioremediation of risky metals has gotten impressive and developing enthusiasm throughout the years. Adsorption of Cr 3+ and Fe 2+ from its aqueous solution on biosorbent Mango leaf powder (MLP) was prepared from matured Mango (Mangifera indica) leaves. The study was carried out by batch adsorption experiments using atomic adsorption spectroscopy upon various parameters used to assess their impact on the adsorption of metal ions. The achieved results evidenced the adsorption of Cr 3+ and Fe 2+ on MLP is better. The higher adsorption ability was shown about 237.5 and 227.5 mg/g respectively at 50 mg/L concentration of metal ions and 100 mg/L of MLP. Besides, the adsorption of Cr 3+ and Fe 2+ on MLP was found to be fitted with the Freundlich isotherm. Thermodynamic results showed the sorption process is feasible, spontaneous, and endothermic. Kinetic parameters had shown that the adsorption of Cr 3+ and Fe 2+ ions found as pseudo-second-order kinetics; also this current study proposing that ABOUT THE AUTHORS Dr. Ramesh Duraisamy, Industrial Chemist's working as an Associate Professor in Arba Minch University, Ethiopia. His profound expertise in the field of research includes water and wastewater treatment, waste management, sugar and food technology, textile and leather technology, Nano-material's development. His contributions in the above said research fields evident through his publications.Mihretu Mechoro, M.Sc student (physical chemistry) of Arba Minch University. His thesis focused on the removal of heavy metals from wastewater using biosorbent activated carbon.Dr. Tolera Seda Badessa, expertise the research fields as in Ion transport mechanism through ion exchange membrane upon electrodialysis/reversal elctrodialysis, etc. His profound contribution in the field of research has proven through the research articles were published in esteemed journals.Dr. Masood Akhtar Khan, Analytical Chemist's in Arba Minch University, Ethiopia. He has published many research articles in the field of ion exchange, adsorption of heavy metals and analysis of substances.