 He is credited with having carried out a systematic revenue settlement of major portions of the Deccan, which formed the basis for many subsequent settlements.When the Ahmadnagar kingdom was conquered by Bijapur and the Mughals in alliance, the Siddis switched their allegiance to the Sultanate of Bijapur; when the Bijapur kingdom was conquered by the Mughal Empire, the Habshis switched their allegiance to the Mughal Empire.As clients of these Muslim states, the Siddis were nominally part of their navies, and fulfilled the role of defending Muslim interests in the sea, and particularly, access by sea for the Hajj and Umrah, for which reason, the interior Muslim states felt compelled to aid and rescue the Siddis from their enemies.