According to a "Ras-Mala" account based on the writings of the 14th century chronicler Merutunga, Karna defeated the Bhils and the Kolis. The two tribes lived between the Rann of Kutch and the Sabarmati River, and plundered the Chaulukya territories. As a result, Karna led a series of expeditions against them. In one such campaign, he defeated a Bhil chief named Asha (Āśā), who lived at Ashapalli. According to Merutunga, Karna established the city of Karnavati after this victory. Karnavati is identified with modern Ahmedabad by some, but this is not certain.