The present invention provides a process for fortifying ready to eat rice grains. The process includes preparing fortification solution with an organic solvent in a homogenizer (400). The process further includes feeding the homogenized fortification solution in a reactor (500). The fortification solution is prepared by dissolving a fortificant in water-glycerin solution having a mixture of a water and a glycerin in a ratio of 99:1 to 90:10, and mixing the fortificant-water-glycerin solution in the organic solvent, wherein the said fortification solution involves the organic solvent solution and the water in a ratio of 99:1 to 70:30, respectively. The process further involves ab/adsorption of the fortification solution in the grains by operating the reactor (500) at a temperature in a range of 25° C to 50° C and creating a pressure of about 0.6 to 2 bar absolute for a predetermined time to obtain fortified grains.