Hello,

The answer is YES. It totally depends on the teacher who will  re-check your answer sheet. You will be rewarded with more marks if any answer went uncheck during the first or primary checking. But if the teacher finds out that you have got some extra marks or more marks than your actual deserving marks then your marks will be deducted and your final marks will get even lower. So think before you apply for recheck.

If you still want to apply for recheck then you can Visit

biharboardonline.com

biharboardonline.gov.in

You have to pay INR 70 For every paper that you're willing to send for rechecking. If there would be any kind of change or revision in your marks then you will be informed online. Here's the important dates regarding this-

BSEB class 12th scrutiny form Date- April 1st to April 7th, 2021

Result for the revaluation- May, 2021

Good Luck.