Hi Ashish,

If you have your Roll No. filled correct than there is no point to worry about as the board copies are checked as per the Roll No. not as per name.

Name comes into play only when if Roll no. is incomplete or matching.

As far as there will no concern while encircling provided that you have filled and encircled or bubbled the correct Roll No. Digits.

Next time if you mistook in OMR sheet than ask the invigilator to provide whitener or any other thing to correct that.

I hope it helps you.

Best of Luck for your board exams!