Hello,

In order to appear for UPSC candidates need to pass graduation in any discipline from a recognized university, those in the final year are too eligible to apply provisionally, candidates need to attain 21 years as on 1st August of the appearing year, now as per your DOB  you will attain 21 years as on 27th December 2023, hence you will be eligible for UPSC 2024 the reason being you will not the minimum age criteria for UPSC 2023 as you will fall short of five months in terms of reaching 21 years, hope this clears your doubt.