prayase—when the endeavor; apahate—futile; tasmin—that; daitya-indrah—the King of the demons, Hiranyakasipu; parisankitah—very much afraid (considering how the boy was protected); cakara—executed; tat-vadha-upayan—various means for killing him; nirbandhena—with determination; yudhisthira—O King Yudhisthira.