The Vastu Purusha Mandala

North Indian tradition most strictly follows the 81-pada canonical grid and the deity-per-pada assignment. The Mandala is both a planning tool and a consecrated diagram.

The Marathi Wada tradition is the most literal architectural expression of the Mandala in domestic buildings — each of the four wings directly corresponds to a quadrant of the grid.

Tamil tradition is unique in offering two canonical grid sizes (64 and 81 padas) and combining the Mandala with Ayadi mathematical verification — a dual-layer system that other traditions don't enforce.

Kakatiya-era architecture provides the best surviving examples of precise Mandala-to-building mapping in South-Central India. The grid was used for both temples and royal domestic structures.

Hoysala star-shaped temple plans demonstrate that the Mandala is a conceptual grid, not a rigid rectangle — the stellate form emerges from the grid through geometric transformation while preserving directional sanctity.

Kerala's Thachu Shastra adds a proportional layer — the Mandala grid is not just directional but dimensionally calibrated to the owner's body measurements (Thalavara system). This makes each Nalukettu unique to its owner.

Gujarat uniquely applies the Mandala at the urban scale — the Pol layout is effectively a city-level Vastu Purusha Mandala, with each Haveli as a pada within the larger grid.

Bengali tradition's adaptation for riverine geography demonstrates the Mandala's flexibility — the principles are preserved through plinth height variation rather than ground-level manipulation.

Kalinga tradition has the strongest solar orientation of any Indian architectural school — the Mandala is always aligned with the sunrise axis, as exemplified by Konark Sun Temple.

Sikh architecture adds a pragmatic-defensive layer — the Mandala is respected but security and community access override directional preferences when necessary (as seen in the Akal Takht's strategic orientation).