Ajayaraja founded The city of Ajmer. Ajayaraja I founded the city of Ajayameru (modern Ajmer). The Prabandha-Kosha states that he commissioned the Ajayameru fort, which later came to be known as the Taragarh fort of Ajmer. Ajayaraja I was an Indian king belonging to the Chahamana dynasty of Shakambhari. He ruled parts of present-day Rajasthan in north-western India. Ajayaraja I succeeded Naradeva as the Chahamana king. According to the 12th century chronicle Prithviraja Vijaya, he was a great warrior who defeated several enemies.