Hi there,

Yes, you will be eligible for UPSC 2026 with your date of birth

This is because,

To be  eligible ,you  need to  be at least  21  years  old  as on 1st August of the year of appearing for UPSC examination i. e as on 1st August 2026 for UPSC 2026 and you fulfill this criteria as with your date of birth on  21 june  2005 as you will be 21 years old on 21 June 2026 i. e  before 1st August 2026 and thus eligible.

Hope it helps you

Good luck!