If you obtain an SC category caste certificate issued on today's date and submit it during the NEET counseling process in Chhattisgarh, it is generally acceptable, as long as the certificate is valid and properly issued by the competent authority.

Typically, the authorities require the caste certificate to be valid at the time of document verification, rather than being issued before the counseling registration date. However, the key is to ensure that the certificate is genuine, issued by the appropriate authority, and meets all the requirements specified by the counseling guidelines.

During document verification, the officials will primarily check the authenticity and validity of the caste certificate rather than the issuance date. It is advisable to check the specific guidelines provided by the Chhattisgarh State NEET Counseling authorities, as they may have particular rules regarding documentation.

If you're still unsure, you can contact the counseling authority or the college where you anticipate getting admission to confirm their specific requirements. It's always better to have clarity beforehand to avoid any complications during the admission process.