Due to a change in the course of the Hirmand River or its overflow, these inhabited areas have been demolished. However, in the early Islamic era, the city of Zaranj was the capital of Yaqoob Lais and his successors. It is believed that vestiges will be found related to the Achaemenian, Parthian, Sassanide and the pre-historic eras in the excavations to be carried out in this vicinity.