Soniya, if your old marks sheet is original and can be authenticated, there is no reason why you should not be using your 10th, 12th marks sheets along with Graduation marks sheet. You haven't mentioned the reason as to why have you pursued your 10th again in 2018 but yes. if your old marks sheets are original, you can use them for your Employment purposes. But they should clear the background verification procedures. But no way can you use both the old and new 10th mark sheets for any purpose whatsoever. That might become a legal issue again.