What is special category in dnb councelling? Which certificate to upload for obc A candidates?

What is special category in dnb councelling? Which certificate to upload for obc A candidates?

I also got the same msg. Did u cl dnb helpline number?

I uploaded the same certificate in both options

Me too got same msg, uploaded same certificate.

I had mailed but no reply from their side…

Applicable only for WB candidates who can get an OBC A or OBC B certificate in state.