Authority
National Securities Depository Limited
Implementation specifications › NSDL circulars
Operating-source boundary: this is an official implementation gateway. Search by the relevant date, segment, circular number and subject; preserve the downloaded attachment and confirm that it has not been superseded.
Coverage
Depository participant and issuer operations
Official gateway
Open source →Evidence checklist
- SEBI enabling Regulation, Master Circular or circular.
- Exact exchange/depository/clearing circular number and issue date.
- Effective date, transitional relief and segment applicability.
- Annexures, file formats, reporting schema and system release.
- Later replacement, clarification, FAQ or corrigendum.
- Archived PDF/ZIP hash and internal implementation evidence.