Hey there!

As you have mentioned above your Date of birth is 23rd May,2002. You will attain the age of 21+ in 2023 at the time of UPSC Mains Exam.

Yes, you will be eligible for UPSC 2023. The eligibility criteria for UPSC Civil Services Exam is that candidate need to complete at least 21 years of age as on 1st August in the year he/she will give UPSC mains.

Apart from this you have to be a citizen of India, must be a graduate etc. Please access these link to get to know about UPSC eligibility and exam details.

https://competition.careers360.com/articles/upsc-ias-eligibility-criteria

https://competition.careers360.com/articles/how-prepare-for-upsc-ias/amp

https://competition.careers360.com/articles/upsc-ias-question-papers

I hope this answer helps you.

Feel free to ask if you have any more queries.

All the best!