hello aspirant,

if you don't have OBC Certificate, then what you can do is that you can submit a self declaration form or an affidavit for OBC category, that you will submit the newly created OBC Certificate when you'll have it after 14 days or so, from the time of submitting of the self-undertaking/affidavit. The Self-declaration form or Affidavit will be the proof to CUCET that You'll submit the newly created OBC Certificate when it'll be issued by your name. So, when the new certificate will arrive at your hand then you can submit that OBC certificate during the tim eof counselling of CUCET. In this way you can claim the benefit of OBC reservation also.

Further, you can also register yourself as a GENERAL Category student if you don't want to issue any self-undertaking form. There's no issue regarding taht either.

Further, to know more about the CUCET application form, you can follow the below mentioned link to know more : https://www.careers360.com/exams/cuet

I hope that this will help.