Matsya Purana — Ila–Sudyumna Episode and the Expansion of the Ikṣvāku
नलौ द्वाव् एव विख्यातौ वंशे कश्यपसम्भवे वीरसेनसुतस्तद्वन् नैषधश्च नराधिपः //
nalau dvāv eva vikhyātau vaṃśe kaśyapasambhave vīrasenasutastadvan naiṣadhaśca narādhipaḥ //
In the lineage descended from Kaśyapa, two kings named Nala alone are renowned—one the son of Vīrasena, and the other the Niṣadha king, a ruler among men.
This verse is not about Pralaya; it is a genealogical identification verse, distinguishing two famous kings named Nala within the Kaśyapa-descended royal line.
Indirectly, it supports the Matsya Purana’s rajadharma framework by preserving royal memory: naming and distinguishing kings (narādhipas) is part of the Purāṇic aim of legitimizing righteous rule through lineage and historical continuity.
No Vāstu, temple-building, iconography, or ritual procedure is stated in this verse; its focus is purely dynastic—cataloguing notable rulers and their identifiers (father-name/kingdom).