AJ Prefab Cottage Established in year 2017, AJ Prefab Cottage is a manufacturer, wholesaler trader and retailer of high quality Prefabricated Shelters, Prefabricated Houses and more. These products are manufactured from high quality material that is procured from well-known vendors. The offered products can be customized as per the specification provided by our customers. We are currently operating under the leadership of Mr. Rajiv Ranjan Jha (CEO), who has rich knowledge of the domain.