The scroll support is one of the oldest ideas in furniture, and it comes from stone rather than wood. Roman tables stood on carved marble volutes, because a scroll is a shape that can be cut from a solid block without a weak point - the curve spirals in on itself and the material stays continuous.
Cabinetmakers took it up for exactly the same reason. A scroll support carries load down through a broad curve into a plinth, spreading weight over a wide footprint rather than concentrating it on four points as legs do. On a piece that will hold a loaded top and take someone leaning on it daily, that matters.
Carving one properly means shaping it from four faces at once, because a volute is a three-dimensional spiral rather than a profile cut into a board. Our master Indian artisans work the pair together, turning both constantly and checking one against the other - a scroll support that is fractionally different from its twin is obvious from directly in front, and there is nothing to hide it behind.