Matsya Purana — The Slaying of Jambha and the Rise of Tāraka: Divine Battle Formations
गन्धर्वनगरैश् चापि नानाप्राकारतोरणैः मुञ्चद्भिरद्भुताकारैर् अस्त्रवृष्टिं समन्ततः //
gandharvanagaraiś cāpi nānāprākāratoraṇaiḥ muñcadbhiradbhutākārair astravṛṣṭiṃ samantataḥ //
And there were also “Gandharva-cities”—wondrous, seemingly magical constructions—together with many kinds of ramparts and arched gateways (toraṇas), which in marvelous forms discharged a shower of weapons on every side.
This verse does not describe Pralaya; it belongs to a Vastu/fortification context, emphasizing engineered (even ‘marvel-like’) defensive city structures rather than cosmic dissolution.
It aligns with royal duty (rājadharma) to protect the realm: strong walls, gates, and defensive installations are presented as legitimate means for safeguarding citizens and maintaining order.
Architecturally, it highlights prākāras (ramparts) and toraṇas (gateways) and suggests specialized defensive devices capable of projecting weapons in all directions—an important motif in Matsya Purana’s fort and city-planning guidance.