This is a study resource. Use it, quote it, teach from it — but read what follows on scope, citation and the limits of what is published here.
Scope of the site
81Matrix publishes educational material on traditional Indian knowledge. Nothing here is professional architectural, structural, engineering, legal, medical or financial advice, and it should not be relied on in place of a qualified practitioner.
No consultation or remedies
We do not offer paid readings, remedial products or site consultations, and we are not affiliated with anyone offering them in our name. Applying any principle to a specific plot or building remains your own decision and responsibility.
Use of our material
Lessons, glossary entries and downloadable sheets may be copied, printed and used in teaching free of charge, provided 81Matrix is credited and the source references travel with the material. Commercial redistribution requires written permission.
Third-party texts and images
Quoted verses, translations and photographs remain the property of their editors, translators and photographers. Where a work is still in copyright we reproduce only what fair dealing allows and cite the edition.
Accuracy and revision
Source notes are revised as scholarship develops. We correct errors promptly and date every change, but we make no warranty that the material is complete or free of error at any given moment.
Governing terms
These terms are governed by the laws of India. Continued use of the site constitutes acceptance; material changes will be dated and announced on this page.