abstract:Sattagydia (Old Persian Thataguš, country of the "hundred cows") was a satrapy of the Achaemenid Empire, situated east of the Kirthar Mountains on the Indus River, corresponding approximately to southern Indoscythia and to the current Sindh region of Pakistan. It was bounded on the west by Gedrosia, on the north by Arachosia and on the south and east by the Kingdoms of Ancient India.