Matsya Purana — The Attendant Hosts of the Sun and Moon: Monthly Gaṇas
हरितैरव्यथैः पिङ्गैर् ईश्वरैर् ब्रह्मवादिभिः बाह्यतो ऽनन्तरं चैव मण्डलं दिवसक्रमात् //
haritairavyathaiḥ piṅgair īśvarair brahmavādibhiḥ bāhyato 'nantaraṃ caiva maṇḍalaṃ divasakramāt //
With the green ones, the untroubled ones, and the tawny ones—together with the divine lords and the sages who speak of Brahmā—the maṇḍala is to be arranged from the outer circuit inward, in accordance with the sequence of the days.
This verse is not about Pralaya; it focuses on ordering a sacred maṇḍala—placing classes of presiding powers and sages in a structured sequence (outer to inner) tied to a day-wise ritual order.
For a king commissioning temples or a householder establishing a consecrated space, it prescribes disciplined procedure: the layout should be arranged methodically (outer-to-inner) and synchronized with an approved temporal order (divasa-krama), reflecting dharmic planning rather than arbitrary placement.
It indicates a Vāstu/ritual mapping rule: the maṇḍala’s occupants (deities/sage-classes) are assigned in concentric or sequential order from the perimeter inward, coordinated with a calendrical or day-sequence used during installation and worship.