Hello Aspirant

Yes, your OBC caste certificate issued in December 2023 should be valid for the Maharani University 2024 admissions process.

When a caste certificate is issued, it is valid for the next 5 years, after that you need to renew it.  Still, you can contact the university's admissions office or refer to their official website for the exact guidelines regarding caste certificate validity. They will be able to provide you with the most accurate and up-to-date information.

Hope this helps