Hi,

After the results are out for the further process that particular information is considered which you filled  in the application form.

Before release of admit card often exam conducting institute opens  the correction windows so that a candidate if want can make some changes.  After the exams are over you can not make any changes in application form.

Unfortunately even if you belong to Sebc category but if applied through general category ,you will be considered a general category candidate.

Hope this helps. All the best.