Some scholars, such as K. V. Ramesh and K. A. Nilakanta Sastri, date the battle to c. 612 CE or before, based on the 612–613 CE Hyderabad inscription of Pulakeshin. This inscription boasts that Pulakeshin defeated a king who had fought a hundred battles (presumably Harsha). The later Chalukya inscriptions, dating from the reign of Vikramaditya I onwards, mention Pulakeshin's victory over Harsha using similar expressions. This early date for the war is also supported by the writings of Xuanzang, who states that Harsha fought wars for six years, and then ruled in peace for thirty years.