in tnea counselling the caste is mbc but in my community certificate it is bc and i already completed my payment it any problem

Yes, the mismatch between your registered category (MBC) and the actual certificate (BC) can create an issue during document verification because both details must match exactly.

But since your application and fee payment are already completed, your registration is still active. You should immediately:

• contact the counselling/helpdesk authority, or
• raise a correction request before verification.

In many cases, category corrections are allowed before final certificate verification or counselling confirmation.