Matsya Purana — Navagraha Sacrifice for Planetary Pacification and Prosperity
तस्य चोत्तरपूर्वेण वितस्तित्रयसंस्थितम् प्रागुदक्प्लवनं तच्च चतुरस्रं समन्ततः //
tasya cottarapūrveṇa vitastitrayasaṃsthitam prāgudakplavanaṃ tacca caturasraṃ samantataḥ //
To its north-east, a ‘plavana’ (a raised platform or paved working area) should be laid out, measuring three vitastis; it should face east and north, and be square on all sides.
This verse does not address Pralaya; it belongs to the Matsya Purana’s Vastuvidya material, prescribing directional placement and measurement for a site element.
It supports the king’s or householder’s duty to build correctly—planning buildings and precincts with proper measures and auspicious directions, a key concern in Purāṇic governance and domestic order.
It specifies a north-east placement and a fixed measure (three vitastis) for a square ‘plavana,’ emphasizing precise geometry and auspicious orientation (east/north) in Vastu-based construction.