If you want to apply for revaluation of your Class 10 results, the process depends on your educational board. Assuming it is CBSE , you have to apply to obtain a scanned copy of the answer scripts. If any discrepancy is located, then you can move on to opt for verification of marks and the re-evaluation facility. Carefully read the CBSE notification and apply online within the time period announced. The details about the CBSE 10th result revaluation and verification process have been mentioned here.

Hello aspirant,

For the Class 10 and 12 board exams, the Central Board of Secondary Education (CBSE) has implemented a new post-result procedure.  Before choosing to apply for a re-evaluation or mark verification, students will be able to view photocopies of their assessed answer sheets starting this year.
To ask for revaluation, students must first request a photocopy of their answer sheet.  They can submit a revaluation application and the necessary cost after checking it for any inconsistencies.

Thank you

Hope it helps you