The heart of the Rashtrakuta empire included nearly all of Karnataka, Maharashtra and parts of Andhra Pradesh, an area which the Rashtrakutas ruled for over two centuries. The Samangadh copper plate grant (753) confirms that the feudatory King Dantidurga, who probably ruled from Achalapura in Berar (modern Elichpur in Maharashtra), defeated the great Karnatic army (referring to the army of the Badami Chalukyas) of Kirtivarman II of Badami in 753 and took control of the northern regions of the Chalukya empire. He then helped his father-in-law, Pallava King Nandivarman regain Kanchi from the Chalukyas and defeated the Gurjaras of Malwa, and the rulers of Kalinga, Kosala and Srisailam.