Matsya Purana — Tārakāsura’s Austerity and Boon; Mobilization for War; Bṛhaspati’s Fourfold P...
सेना सा देवराजस्य दुर्जया भुवनत्रये कोटयस्तास् त्रयस्त्रिंशद् देवदेवनिकायिनाम् //
senā sā devarājasya durjayā bhuvanatraye koṭayastās trayastriṃśad devadevanikāyinām //
That army of the king of the gods (Indra) was unconquerable in the three worlds; it comprised thirty-three koṭis—hosts belonging to the divine assemblies of the gods.
This verse does not describe Pralaya directly; it emphasizes the cosmic scale and invincibility of Indra’s divine host operating across the three worlds, a common Puranic framing for cosmic order rather than dissolution.
By portraying Indra’s army as disciplined and unconquerable, the verse implicitly supports rajadharma ideals: a ruler should maintain organized forces and uphold order across his realm, mirroring the gods’ protection of cosmic stability.
No Vastu or temple-architecture rule is stated here; the primary ritual-cosmological takeaway is the notion of vast divine “assemblies” (nikāyas) and the traditional count of “thirty-three” gods, often invoked in Vedic-Puranic liturgy.