DigiLocker has been functioning in rather strange ways, at least in my experience over the past year. For quite some time now, I have been trying to retrieve various documents from the Government of India's official app, but every attempt ends with an inexplicable "mismatch" error. I even lodged a complaint through its official email ID, explaining that I was unable to retrieve or download essential documents such as my PAN card , driving licence, and the registration certificates of my car and scooter. The response has remained the same: the system refuses access on the grounds of a so-called mismatch.
Rajiv Shah's News Blog