محمد بن القاسم الثقفي
In 712, Muhammad bin Qasim conquered the Sindh and Indus Valley, bringing South Asian societies into contact with Islam. Raja Dahir Sen was an Hindu king that ruled over a Buddhist majority and that Chach of Alor and his kin were regarded as usurpers of the earlier Buddhist Rai Dynasty, a view questioned by those who note the diffuse and blurred nature of Hindu and Buddhist practices in the region, especially that of the royalty to be patrons of both and those who believe that Chach may have been a Buddhist. The forces of Muhammad bin Qasim defeated Raja Dahir in alliance with the Hindu Jats and other regional governors.