Section 28(4)(a) in The Aadhaar (Authentication) Regulations, 2016
(a)other than with the Aadhaar number holder to whom the records or e-KYC data relate in accordance with the verification procedure specified. Aadhaar number holder may share their digitally signed authentication records and e-KYC data with other entities which shall not further share with any other agencies without obtaining consent of the Aadhaar holder every time before such sharing.