Sailendra Nath Sen notes that the Mauryan empire already extended from the western sea (beside Saurashtra) to the eastern sea (beside Bengal) during Chandragupta's reign. Besides, Ashoka's inscriptions found in southern India do not mention anything about Bindusara's conquest of Deccan (southern India). Based on this, Sen concludes that Bindusara did not extend the Mauryan empire, but managed to retain the territories he inherited from Chandragupta.
