jitvā - conquering; param - enemies; dhanam - wealth; sarvam - everything; sa-strīkam - with their wives; vajra-pāṇaye - unto Indra, who carries the thunderbolt; pratyayacchat - returned and delivered; saḥ - that; rāja-ṛṣiḥ - saintly king (Purañjaya); iti - thus; nāmabhiḥ - by names; āhṛtaḥ - was called.

After conquering the enemy, the saintly king Purañjaya gave everything, including the enemy’s riches and wives, to Indra, who carries a thunderbolt. For this he is celebrated as Purañjaya. Thus Purañjaya is known by different names because of his different activities.