Gallium is a strategic material due to its high-tech applications, but its availability in minerals is extremely poor to ensure economically feasible recovery. It is possible through the processing of other Ga-containing minerals, during which Ga gets concentrated. In the present work, Batch-wise adsorption of Ga(III) from the aqueous solution of gallium nitrate having different concentrations was attempted on unmodified (UC) and oxidized coir (OC). The SEM micrographs of OC show more porous structure due to the removal of pits from the coir surface by oxidation, leading to a 1.5 x increase in the surface area. The effect of increasing pH from I to 3 greatly enhanced the adsorption. At pH 3, as high as a 70.53% adsorption was achieved on OC, beyond which Ga does not remain in solution form. Ga(III), being a trivalent ion, possesses substantial acidity, which increases with its concentration. The mechanism of Ga(III) adsorption on UC and OC has been put forward based on ion exchange. The adsorption fits to the Langmuir isotherm model and has been shown to obey pseudo second order kinetics. Considerably high adsorption capacity is gained by the coir upon simple oxidation treatment. The maximum adsorption capacity of OC was observed to be 19.42 mg g(-1), as compared to 13.75 mg g(-1) for UC. Desorption using 0.5 M HCl leads to nearly complete recovery of Ga(III) without affecting the physical characteristics of the adsorbent, like strength and crystallinity.