Hello Siva,

As you are from OBC you have to apply in OBC category. Central OBC-NCL certificate is different from State OBC-NCL certificate, even your caste is in central list. OBC-NCL central is required when you are applying for central colleges and universities and State OBC-NCL certificate is required when you are applying for state colleges. Based on this whether you want to apply for state or central colleges you upload a state OBC-NCL or Central OBC-NCL certificate respectively. If you want further clarity on it i request you to contact on candidate support number or email given on NTA website.

Hope this resolves your query.