The Chauhan dynasty flourished from the 8th to 12th centuries CE. It was one of the three main Rajput dynasties of that era, the others being Pratiharas and Paramaras. Chauhan dynasties established themselves in several places in North India and in the state of Gujarat in Western India. They were also prominent at Sirohi in the southwest of Rajputana, and at Bundi and Kota in the east. Inscriptions also associate them with Sambhar, the salt lake area in the Amber (later Jaipur) district (the Sakhambari branch remained near lake Sambhar and married into the ruling Gurjara–Pratihara, who then ruled an empire in Northern India). Chauhans adopted a political policy that saw them indulge largely in campaigns against the Chalukyas and the invading Muslim hordes. In the 11th century, they founded the city of Ajayameru (Ajmer) in the southern part of their kingdom, and in the 12th century, the Chauhans captured Dhilika (the ancient name of Delhi) from the Tomaras and annexed some of their territory along the Yamuna River.