Explainer
Survey of India, under the Department of Science & Technology, publishes geospatial data guidelines that govern how mapping and survey data may be collected, held, and shared in India. These guidelines followed the 2021 liberalization of India’s geospatial data policy, which opened up commercial and private survey activity that was previously far more restricted.
For a parcel-mapping or diligence workflow, the practical relevance is accuracy and provenance: the guidelines set expectations for how mapping data should be sourced and classified. This page does not quote specific accuracy-class thresholds or restricted zones from the guidelines -- those change, and restating them here risks going stale or, worse, being treated as a substitute for the source text.
Ferrum OS map-based tooling references publicly available imagery and parcel data sources; this page explains why that sourcing discipline matters, not what any specific Ferrum OS map output is derived from -- that detail belongs on the relevant product page, not here.