The Indo-Greeks are mentioned in ancient sources as having occupied the areas of the Patalene (Sindh) and Gujarat, including the strategic harbour of Barygaza (Bharuch), conquests also attested by coins dating from the Indo-Greek ruler Apollodotus I and by several ancient writers (Strabo 11; Periplus of the Erythraean Sea, Chap. 41/47):
Moreover the region which is next to the western part of India, is called Indoscythia. A part of this region around the (Indus) river mouth is Patalena, above which is Abiria. That which is about the mouth of the Indus and the Canthicolpus bay is called Syrastrena. (...) In the island formed by this river are the cities Pantala, Barbaria. (...) The Larica region of Indoscythia is located eastward from the swamp near the sea, in which on the west of the Namadus river is the interior city of Barygaza emporium. On the east side of the river (...) Ozena-Regia Tiastani (...) Minnagara".