SB 5.16.29
tam anuparito loka-palanam astanam yatha-disam yatha-rupam turiya-manena puro ’stav upaklptah.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Surrounding Brahmapuri in all directions are the residences of the eight principal governors of the planetary systems, beginning with King Indra. These abodes are similar to Brahmapuri but are one fourth the size.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Srila Visvanatha Cakravarti Thakura confirms that the townships of Lord Brahma and the eight subordinate governors of the planetary systems, beginning with Indra, are mentioned in other Puranas.
merau nava-purani syur
manovaty amaravati
tejovati samyamani
tatha krsnangana para
sraddhavati gandhavati
tatha canya mahodaya
yasovati ca brahmendra
bahyadinam yatha-kramam
Brahma’s township is known as Manovati, and those of his assistants such as Indra and Agni are known as Amaravati, Tejovati, Samyamani, Krsnangana, Sraddhavati, Gandhavati, Mahodaya and Yasovati. Brahmapuri is situated in the middle, and the other eight puris surround it in all directions.
Thus end the Bhaktivedanta purports of the Fifth Canto, Sixteenth Chapter, of the Srimad-Bhagavatam, entitled “A Description of Jambudvipa.”