What is NRDC?
In accordance with Section 20 of the IT Act, NRDC is a national repository maintained by the CCA that contains all Digital Certificates and CRLs issued by all the licensed CAs. It also contains all the Digital Certificates and CRLs issued by the CCA through its RCAI. All Relying Parties are allowed to verify the authenticity of a CA’s public keys from this repository.