kriyā-tantūn vitāyitā

satrayanasya-of Satrayana; tanayah-the son; brhadbhanuh-Brhadbhanu; tada-at that time; harih-the Supreme Personality of Godhead; vitanayam-in the womb of Vitana; maha-raja-O King; kriya-tantun-all spiritual activities; vitayita-will perform.