The present study deals with the experimental investigations carried out for controlling SO2 by using mangifera bark dust. It was found that the amount of gas adsorbed by mangifera bark dust is 98% at high concentrations. The experiments are conducted with respect to contact time, with respect to initial concentration of SO2, and with respect to mangifera bark dust dosages. The component present in the mangifera bark dust is lignin and cellulose and many hydroxyl groups such as lumens’ or phenolic compounds. The adsorption observed in the present conditions indicates physical adsorption. The percentage removal of SO2 increased with increase in the surface area, greater the area greater is adsorption. The percentage removal of SO2 increased with increase in mangifera bark dust dosage.