KYC identifier requirement: electronic retrieval of KYC records mandated, limiting duplicate document requests and requiring registry updates. Reporting entities must seek or retrieve the KYC Identifier and obtain KYC records online from the Central KYC Records Registry, and may not require duplicate KYC documents unless the registry record has changed, is incomplete or non compliant, document validity has lapsed, or further verification or enhanced due diligence is necessary; entities must retrieve and update their records when notified of registry updates and follow regulator guidelines, with certain actions to be completed within seven days or as notified by the Central Government.