Carving the full circumference of a round bed is a decision about where the piece will stand. A rectangular bed has a back and two sides that face away from the room, and workshops have always economised there. A circle has no such luxury - walk around it and every part of the base is in view, so the carving either continues or it visibly stops.
This one continues. The scrollwork runs unbroken around the whole circle, which means several times the carving of a comparable rectangular bed and a substantially longer time at the bench.
The large medallion at the front is there to orient it. A fully carved circle with no emphasis anywhere would spin - the eye would find no front - so our master Indian artisans set a deeper, larger carved element at the foot to say where the bed faces. It is the same reason a compass needs a north: without one point of reference, symmetry becomes disorientation rather than calm.