How Digital Locker System should be used by a Subscriber
A Digital Locker shall be used by the subscriber to –
(a) access and register for Digital Locker on the web or mobile based Digital Locker Portal;
(b) upload documents, or as the case may be, digitally sign, the uploaded documents in the Digital Locker as provided by the Digital Locker service provider;
(c) access documents from issuers using the document URI’s available in the Digital Locker account.
(d)grant access to the requester to access State or Central department or agency or body corporate issued records by providing unique document URI; and
(e)provide consent to the issuer to deposit document URI’s and to the requestor to access documents.
Source : http://perry4law.co.in/news/wp-content/uploads/2016/08/Information-Technology-Preservation-and-Retention-of-Information-by-Intermediaries-Providing-Digital-Locker-Facilities-Rules-2016.pdf