The invention relates to a water dispersible granular composition comprising 1% to 70% of one or more of iron salts, complexes, derivatives, mixtures thereof, 1% to 90% of elemental sulphur, and 1-30% of at least one dispersing agent; wherein the granules are in the size range of 0.1-2.5 mm and comprises particles in the size range of 0.1-20 microns. The invention further relates to a liquid suspension composition comprising 1% to 55% of at least one or more of iron salts, complexes, derivatives, mixtures thereof and 1% to 60% elemental sulphur, 0.01-5% of at least one structuring agent and at least one agrochemically acceptable excipient; wherein the composition comprises particles in the size range of 0.1-20 microns. The invention further relates to a process of preparing the composition and to a method of treating the plants, seeds, crops, plant propagation material, locus, parts thereof or the soil with the composition.