The real founder of the Muslim Empire in India was Shihad-ud-Din Muhammad Ghori or Muhammad of Ghur. It is true that Muhammad bin-Quasim was the first Muslim invader of India but he failed to carve out a Muslim empire in India on account of his premature death. Mahmud also failed to set a Muslim empire in India and the only permanent effect of his invasions was the annexation of Punjab. It was left to Muhammad Ghori to build up a Muslim Empire in India on a secure footing.He was also a ruler of a small kingdom in Afghanistan. But he was interested in conquering northern India and adding it to his kingdom, and not merely in getting gold and jewellery like Mahmud.His first invasion was directed against Multan in 1175 AD, which was successful. By1182, Sindh was also captured. Punjab was captured by 1186 AD.Prithviraj Chauhan, who was the king of Delhi at that time, received contingents from other Rajput kings and defeated him in the First Battle of Tarain ( 1191).But he defeated Prithviraj in the Second Battle of Tarain in 1192.Captured Delhi and Ajmer and thus laid the foundation of Muslim Rule in India.Also defeated Jaichandra ( Gahadval Rajput, ruler of Kannauj ) at the Battle of Chhandwar in 1194 AD.Ikhtiyar-ud-din Muhammad bin Bakhtiyar Khalji, one of Ghori’s commanders, annexed Bihar and Bengal and destroyed Nalanda and Vikramshila University.Died in 1206 AD, leaving Qutab-ud-Din Aibak the charge. ...........happy??