Page "History of Pakistan" Paragraph 15

Little is known about the Achaemenid Persian invasion of modern-day Pakistan as historical sources and evidence are scant and fragmentary containing little detail.

There is no archaeological evidence of Achaemind control over modern-day Pakistan as not a single archaeological site that can be positively identified with the Achaemenid Empire has been found anywhere in Pakistan, including at Taxila.

What is known about the easternmost satraps and borderlands of the Achaemenid Empire are alluded to in the Darius inscriptions and from Greek sources such as the Histories of Herodotus and the later Alexander Chronicles ( Arrian, Strabo et al .).

These sources list three Indian tributaries or conquered territories that were subordinated to the Persian Empire and made to pay tributes to the Persian Kings: Gandhara, Sattagydia ( Thatagus ) and Hindush.