 Al Hakam next invaded the Deccan in 739 AD with the intention of permanent conquest, but was decisively defeated at Navsari by the viceroy Avanijanashraya Pulakeshin of the Chalukya Empire serving Vikramaditya II.Arab rule was restricted to the west of Thar desert.When the Abbasid Revolution overthrew the Umayyads in 750 AD after the Third Fitna, Sindh became independent and was captured by Musa b. K'ab al Tamimi in 752 AD.