Matsya Purana — The Battle at Tripura: Shiva’s Strategy
विद्युन्माली स दैत्येन्द्रो गिरीन्द्रसदृशद्युतिः आदाय परिघं घोरं ताडयामास नन्दिनम् //
vidyunmālī sa daityendro girīndrasadṛśadyutiḥ ādāya parighaṃ ghoraṃ tāḍayāmāsa nandinam //
That Vidyunmālī, lord of the Daityas, radiant like the king of mountains, seized a dreadful iron club (parigha) and struck Nandin.
This verse is not about Pralaya; it belongs to a martial mythic episode, emphasizing the clash between Daitya forces and Śiva’s side (through Nandin).
Indirectly, it illustrates the Purāṇic ethic that power and splendor (dyuti) are tested in conflict; later dharma sections frame such strength as legitimate only when aligned with righteous protection, not daityic aggression.
No Vāstu or ritual procedure is taught in this verse; its technical focus is on weaponry (parigha) and battle-description conventions used in Purāṇic narration.