Matsya Purana — Genealogy from Budha to Purūravas and Yayāti; Raji’s war episode; the Paurava...
तथा शक्रो ऽपि समरे येन चैवं विनिर्जितः मित्रत्वम् अगमद् देवैर् ददाव् इन्द्राय चोर्वशीम् //
tathā śakro 'pi samare yena caivaṃ vinirjitaḥ mitratvam agamad devair dadāv indrāya corvaśīm //
Likewise, Śakra (Indra) too—having been thus defeated in battle by him—entered into friendship with the gods; and they gave Urvaśī to Indra.
This verse does not discuss Pralaya; it focuses on a martial and political outcome—defeat in battle leading to an alliance among divine powers.
Indirectly, it reflects a pragmatic dharma of statecraft: even a powerful ruler like Indra forms alliances after defeat, suggesting that wise governance includes diplomacy and reconciliation when circumstances demand.
No Vāstu, temple-building, or ritual procedure is stated in this verse; it is a narrative note about friendship and the bestowal of Urvaśī.