Yes, you can upload your 10th and 12th certificates from DigiLocker for background verification in MNC companies. DigiLocker documents are digitally signed by the issuing authority (CBSE, State Boards, etc.) and carry a valid QR code, making them legally equivalent to original physical copies under the IT Act, 2000 and accepted by most corporates, universities, and government bodies. Just ensure they are properly downloaded as PDFs with the digital signature intact, since screenshots or edited versions may not be accepted.