Hello,
The board has provided the facility to correct the details if given by mistake. If you have given everything correctly then that is well and good. This facility is to help candidates who have done any mistake while filling the form and have to do it before the expiration of deadline.
for more information you can check the article:- https://bceceboard.bihar.gov.in/pdf_Pros/PROS_UGMAC19.pdf
Hope it helps!
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