The empire reached its peak under Dharmapala and Devapala. Dharmapala extended the empire into the northern parts of the Indian Subcontinent. This triggered once again the power struggle for the control of the subcontinent. Devapala, successor of Dharmapala, expanded the empire to cover much of South Asia and beyond. His empire stretched from Assam and Utkala in the east, Kamboja (modern day Afghanistan) in the north-west and Deccan in the south. According to Pala copperplate inscription, Devapala exterminated the Utkalas, conquered the Pragjyotisha (Assam), shattered the pride of the Huna, and humbled the lords of Pratiharas, Gurjara and the Dravidas.