Matsya Purana — Tārakāsura’s Austerity and Boon; Mobilization for War; Bṛhaspati’s Fourfold P...
दैत्येन्द्रा गिरिवर्ष्माणः सन्ति चण्डपराक्रमाः नानायुधप्रहरणा नानाशस्त्रास्त्रपारगाः //
daityendrā girivarṣmāṇaḥ santi caṇḍaparākramāḥ nānāyudhapraharaṇā nānāśastrāstrapāragāḥ //
The chiefs of the Daityas were of mountain-like build and possessed fierce valor; they struck with many kinds of weapons and were thoroughly skilled in diverse handheld arms and missile-weapons.
It does not address Pralaya; it focuses on portraying the Daitya leaders as formidable warriors skilled in many weapons.
Indirectly, it underscores the reality of powerful adversaries in Puranic polity, implying a king’s need for military preparedness, training, and strategic defense against such threats.
No Vastu or ritual procedure is mentioned; the technical emphasis is on warfare terms—śastra (handheld arms) and astra (missile weapons).