 He also suffered a defeat against the Chahamanas of Naddula, who raided the Chaulukya capital during his reign.Karna is credited with defeating a Bhil chief of Ashapalli, and laying the foundation of the Karnavati city, identified with the modern Ahmedabad in western India.Karna married Mayanalladevi, who was the mother of his son and successor Jayasimha Siddharaja.