Hindush (also known as 'Taxila' or 'Sindh') was one of the eastern most satrapy's of the Achaemenid Empire, located in the northwest of the South Asia (modern Pakistan). It was a natural part to the empire during the reign of Darius the Great around 517 BC, since Hindu culture did not excisted at that time period, an Indo Iranian culture was visable.
The capital of this province was at the city named Taxila. Occupation lasted for a considerable time, although when it ended exactly is not entirely clear. The archaeological excavations carried out at Bhir Mound, near Taxila, by John Marshall from 1913 to 1934 revealed heavy masonry of the Achaemenid buildings that formed the earliest stratum of the site. Various other relevant artefacts were found as well.