Muhammad bin Qasim The Great Muslim Conqueror is a research work with the help of many books by Maqsood Sheikh, on the life, his invasion on Sindh and Punjab, War Strategy, Administrative Reforms and Religious Political Views of Muhammad Bin Qasim (31 December 695 - 18 July 715) who was an Umayyad General who, at the age of 17, began the conquest of the Sindh and Punjab regions along the Indus River (now a part of Pakistan) for the Umayyad Caliphate by defeating Raja Dahir of Sindh (Indus Valley). He was born in the city of Taif (in modern day Saudi Arabia). Qasim's conquest of Sindh and Punjab laid the foundations of Islamic rule in the Indian subcontinent. Muhammad bin Qasim's success has been partly ascribed to Dahir being an unpopular Hindu king ruling over a Buddhist majority who saw Chach of Alor and his kin as usurpers of the Rai Dynasty. After the conquest, Muhammad bin Qasim's task was to set up an administrative structure for a stable Muslim state that incorporated a newly conquered alien land, inhabited by non-Muslims.