atha-thereafter; tarksya-sutah-Garuda; jnatva-knowing; virat-the king of birds; prabhu-cikirsitam-the desire of Lord Visnu as Vamanadeva; babandha-arrested; varunaih-belonging to Varuna; pasaih-by the ropes; balim-Bali; sutye-when soma-rasa is taken; ahani-on the day; kratau-at the time of sacrifice.