This may create problem during your verification documents if you get selected in the examination. I would say you should check if there is some option for editing mistakes, although as per the information available, SSC registration details can be changed twice a year. So if you have changed the details once, then you have another chance to edit it. Go to the view/edit registration option in the official website, edit the registration and then apply for the examination you want to apply for. This way there will be no problem.

I hope this answer helps. All the very best for your future endeavors!