tvam - you; vāsudevaḥ - Vāsudeva; bhagavān - the Supreme Lord; avatīrṇaḥ - descended; jagat - of the universe; patiḥ - the master; iti - thus; prastobhitaḥ - emboldened with flattery; bālaiḥ - by childish men; mene - he imagined; ātmānam - himself; acyutam - the infallible Lord.

Pauṇḍraka was emboldened by the flattery of childish men, who told him, “You are Vāsudeva, the Supreme Lord and master of the universe, who have now descended to the earth.” Thus he imagined himself to be the infallible Personality of Godhead.