The Department of Electronics & Information Technology (DeitY) has launched (pdf) an Aadhaar-based e-locker service for storing documents, in beta. Users will be able to store electronic versions of important documents like birth certificates, voters ID cards, University documents, etc in the e-locker. They can also electronically sign these documents with the e-sign facility, which is currently still being tested, and then share them with government organisations or other entities when required.
Every user will get 10 MB of dedicated free personal storage space, which will be linked to their Aadhaar details. The URI (Uniform Resource Indicator) for every document will also be stored in the e-locker, allowing government agencies to directly access the document from the repository. Currently, the e-locker is accessible only through the web portal, but DeitY mentioned that a mobile app will soon be made available as well.