Home / Sahamati Advisories/Circulars Sahamati Advisories/Circulars Circulars Advisories Technical Discontinuation of Old Token APIs effective 21st August 2025 Extension of Deadline for Token Service API Migration to 15th August 2025 Token Refresh API migration and Frequency for Optimized System Performance Deprecation of V1 API Endpoint URLs in Base URL of Entities in Central Registry Process to update CR entries for v2 migration – 8th May 2024 Release of Central Registry GET API V2.0 for NBFC-AA Specifications 2.0.0 – 26th January 2024 Operations RRB Amalgamation – Sahamati Central Registry (CR) Updates Effective 15th September 2025 SOP on RRB Amalgamation in AA Ecosystem, 20th August 2025 Advisory on Implementation of all FI Types as requested by Regulators Fair Use Implementation of Fair Use Templates – Roles, Responsibilities, and Timeline for FIPs – 8th May 2025 Implementation of Fair Use Templates – Roles, Responsibilities, and Timeline for FIUs and AAs – 30th April 2025 Revision of Consent Validity Limits for Lending Use Cases July 14th 2025 Alignment of FIUs with Fair Use Template Parameters 13th Febrarury 2025 Alignment with Fair Use Template parameters (Circular to AAs), 10th February 2025 Fair Use Template Library release 19th May 2024 Technical Sahamati Advisory Tech 2024-12-12 Dated 27th December 2024 Sahamati Advisory Tech 2024-12-01 Dated 19th December 2024 Sahamati Advisory Tech 2024-10-03 Dated 25th October 2024 Sahamati Advisory Tech 2024-10-02 Dated 14th October 2024 Sahamati Advisory Tech 2024-10-01 Dated 1st October 2024 Sahamati Advisory Tech 2024-09-01 Dated 19th September 2024 Scheduling downtime for Production Application on 28th April, 2025 Scheduling downtime for UAT Environment on 25th April, 2025 Scheduling downtime for Production Application on 12th June, 2025 Scheduling downtime for UAT Environment on 04th April, 2025 5:00 PM IST Scheduling downtime for UAT Environment on 10th March, 2025 5:00 PM IST Production environment cluster upgrade activity Member Success Access to Sahamati Services Restricted to Members, dated 1st September 2025. Central Registry Operations Restricted (20-Dec-2025 to 4-Jan-2026) dated 2nd December 2025. Implementation of Multi-Factor Authentication (MFA) for SahAAyak Access dated 3rd December 2025. Update to Customer Experience Checklist Dated March 03, 2025 Related readings: Account Aggregator Key Resources Policy Resources Technical Resources Sahamati Publications