The present invention discloses a method of preparation of a granular composite of diverse active ingredients of relevance for water- related applications. The granular composition comprises of active ingredient homogenized in the aggregated network of organic templated ferric oxyhydroxide (carrier composition). The ability to prepare granular composite! is independent of the nature of active ingredient and is derived from carrier composition. The weight proportion of active ingredient to carrier composition is no less than 20% and up to 50% and active ingredient is in unbound but trapped state. Addition of active ingredient doesnt cause any significant deterioration in the strength of the carrier composition. The application of active ingredient-carrier composition is demonstrated for a number of applications. It is to be noted that carrier composition itself can be an active ingredient, such as an adsorbent for arsenic removal from water with excessively high arsenic adsorption capacity vis-a-vis compositions reported in prior art.