Hey,
As far as I know if you have a valid category certificate issued by your state government it won't cause you a problem at the time of reservation in the counseling. As the category certificate issue by the state authorities are valid at All India level as well.
I will suggest you to contact at the university helpdesk regarding your concern as it's better to be clear before the counseling starts. But I don't think there will be any problem .
All the best.
Thank you.
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