sentences:  All of these structures were square at their core, and each was overlain with the "pancharatha" plan containing a variegated exterior.The central projection, called the "raha", is more pronounced than the side projections, called "kanika-paga", a style that aims for an interplay of sunlight and shade and adds to the visual appeal of the structure throughout the day.The design manual for this style is found in the "Silpa Sastra" of ancient Odisha.