Matsya Purana — Division of Bhārata-varṣa
शूरसेना भद्रकारा बाह्याः सहपटच्चराः मत्स्याः किराताः कुल्याश्च कुन्तलाः काशिकोशलाः //
śūrasenā bhadrakārā bāhyāḥ sahapaṭaccarāḥ matsyāḥ kirātāḥ kulyāśca kuntalāḥ kāśikośalāḥ //
The Śūrasenas, the Bhadrakāras, the Bāhyas, the Sahapaṭaccaras; the Matsyas, the Kirātas, the Kulyas, the Kuntalas, and the Kāśi–Kośalas—these peoples and regions are thus enumerated.
This verse does not describe Pralaya; it is a geographic-ethnographic enumeration of janapadas (regions/peoples) preserved in the Purana’s world-description section.
Indirectly, it supports rajadharma by identifying recognized peoples and realms—useful for a king’s awareness of neighboring polities, alliances, and the broader cultural geography referenced in Puranic governance narratives.
No direct Vastu or ritual rule appears here; the verse functions as a catalogue of peoples/regions, which later tradition can use for contextualizing pilgrimage routes, temple patronage zones, or regional ritual practices.