After the death of Prophet Muhammad in 632 CE, the sequence of Arab invasions on India started. During the reign of Umar Khalifa in 636 CE, the Arabs invaded a place named Thana in Mumbai to loot the Indian regions, but they did not get success.
With passage of time, during the reign of Umayyad dynasty, the Arab army occupied Kirmar, Siestan and Makran situated on the other side of Sindh under the leadership of Abdullah. But Khalifa did not allow Abdullah to proceed further ahead and the Arab invasion became limited till here itself.
