atha te kva gatāḥ siddhāś
catvāraś cāru-darśanāḥ
vyāmocayan nīyamānaṁ
baddhvā pāśair adho bhuvaḥ
atha - thereafter; te - those persons; kva - where; gatāḥ - went; siddhāḥ - liberated; catvāraḥ - four personalities; cāru-darśanāḥ - extremely beautiful to see; vyāmocayan - they released; nīyamānam - me, who was being carried away; baddhvā - being arrested; pāśaiḥ - by ropes; adhaḥ bhuvaḥ - downward to the hellish region.
As we have learned from the descriptions in the Fifth Canto, the hellish planets are situated in the lower portions of this universe. Therefore they are called adho bhuvaḥ. Ajāmila could understand that the Yamadūtas had come from that region.