Principle / Ruledraft· Bṛhat Saṁhitā

The 81-pada preparation is obligatory for dwellings

rul-mandala-81-for-dwellings

Prāṇa relevance

Prāṇa relation not yet traced — a complete, acceptable terminal state.

Sources

  • txt-utpala-vivrtion 53.71-area door discussion (via Bhat, p. 478)Classical✓ verifiedobligatoriness of the 81 scheme

Other attributes

Rule Class
prescription
Statement
Despite the root text's stated option between 81 and 64 squares, the ground must be prepared as 81 squares for the houses of kings and the four varnas — Utpala, citing Vishvakarman.
Tag
CLASSICAL
Source Layer Note
Commentary-only rule; NOT Varahamihira's own statement.