Hello aspirant,
The Eligibility criteria to appear for CSE is that-
1. The candidate must be 21 years of age and should be less then 32 years of age (for general category) as of 1st August 2023.
2. The candidate must hold a bachelor degree from recognised institutions.
Candidates from last year of their course can also apply for the exam.
So on the basis of your date of birth you will be 21 years old before 1st of August 2023. Hence,  you  can apply for the exam .
To know more about UPSC CSE EXAMS visit the following link-
https://competition.careers360.com/exams/upsc-cse

All the best