Hwllo,

Generally, caste certificates are valid for a lifetime, but their validity can vary depending on the specific requirements of the institution or organization.

For AP EAMCET counseling 2024, you should check to confirm the validity of your 2019 BCD caste certificate. Check the Andhra Pradesh government's rules regarding caste certificate validity.

If your certificate is valid, you can use it for counseling. Otherwise, obtain a new certificate from the issuing authority.