Dear student
You didn't the field about which you are asking. This is a mistake which you have done now. In this case, your application form ( If you are asking about ) may get rejected, or you may get a chance to correct or edit the entries, depending upon the exam you are appearing in. In order to get full details, you can visit the official website of the exam, and download the brochure, everything is informed in that.
Hole this helps.
All the best!