Prithviraj Chauhan defeated the invading Muhammad Ghori in the First Battle of Tarain in 1191. In 1192 CE, Muhammad Ghori decisively defeated Prithviraj at the Second Battle of Tarain. After the defeat of Chauhan in 1192 CE, a part of Rajasthan came under Muslim rulers. The principal centers of their powers were Nagaur and Ajmer. Ranthambhore was also under their suzerainty. At the beginning of the 13th century, the most prominent and powerful state of Rajasthan was Mewar. The Rajputs resisted the Muslim incursions into India, although a number of Rajput kingdoms eventually became subservient to the Delhi Sultanate.