Gal Potha (Stone Book) is a giant stone inscription located in the Dalada Maluwa premises of main archaeological site in Polonnaruwa District, Sri Lanka. It is a work of King Nissankamalla (1187-1196) and it is the largest stone inscription discovered so far. The inscription itself tells that this large stone was transported from Minintale, some hundred kilometers away from Polonnaruwa. It describes the genealogy, heroic and altruistic deed of King Nissankamalla. The letters of the inscription were embossed with molten iron. The figure of the woman on the side face of the stone on whom two elephants are sprinkling water has been identified as Goddess Gajalakshmi (Goddess of Prosperity).