Gedrosia

thumb|Map showing Gedrosia in the Indian campaign of Alexander the Great thumb|right|200px|A map of Gedrosia from Munster's edition of Ptolemy's 'Geographia' Gedrosia (; ) is the Hellenized name of the part of coastal Makran in what is now Balochistan. In the accounts about Alexander the Great and his successors, the area referred to as Gedrosia runs from the Indus River to the north-eastern edge of the Strait of Hormuz. It is directly to the south of the provinces of Arachosia and Drangiana, to the east of the province of Carmania, and due west of the Indus which formed a natural boundary between it and western India.

==Geography== Pliny the Elder while explaining the extent of India included four satrapies Arachosia, Gedrosia, Aria and Parapanisidae as western borders of India. India within the Ganges is bounded on the west by the Paropanisadai, Arakhosia, and Gedrosia along their eastern sides; on the north by Mount Imaos, which is situated near the Sogdiaioi and Sakai; on the east by the river Ganges; and on the south and again on the west by a part of the Indian Ocean. Ptolemy, Geography 7:1