The invention relates to an algal granular composition comprising at least one alga, and at least one agrochemically acceptable excipients selected from one or more of surfactants, binders or disintegrant having weight ratio of algae to at least one of surfactant, binder or disintegrant in the range of 99:1 to 1: 99. The algae comprise 0.1% to 90% by weight of the total composition. The composition has a particle size in the range of 0.1 microns to 60 microns. Furthermore, the invention relates to a process of 10 preparing the algal granular composition comprising at least one alga and at least one agrochemically acceptable excipient. The invention further relates to a method of treating the plants, seeds, crops, plant propagation material, locus, parts thereof or the soil with the algal granular composition.
