Hello Aspirant,

Unfortunately not dear, you are late by 1 day means minimum age required for UPSC CSE is 21 years as on August 1st of the examination year but as per your DoB you are completing your age of 21 years on August 2nd, 2023 so you will become eligible from 2024 not for UPSC 2023.

Also for your reference the age relaxation provided by UPSC is also mentioned below :-

>>>> OBC - 3 years

>>>> SC/ ST - 5 years

>>>> Defense Services Personnel, who got disabled during operations during hostilities with any foreign country or in a disturbed area and released as a consequence - 3 years

>>>> Ex-servicemen including Commissioned Officers (CO) and ECOs/ SSCOs who will render at least five years Military Service as of August 1, 2021, and have been released - 5 years

ECOs/SSCOs who have completed an initial period of assignment of five years of Military Service as of 1st August 2021 - 5 years

>>>> In the following cases: blindness and low vision, deaf and hard of hearing, locomotor disability including acid attack, cerebral palsy, leprosy cured, dwarfism, victims and muscular dystrophy, intellectual disability, autism, specific learning disability and mental illness - 10 years

>>>> Candidates ordinarily domiciled in the State of Jammu & Kashmir from January 1, 1981, to December 31, 1989. - 5 years

So as per the age criteria you are not eligible for UPSC IAS exam 2023 because the candidate should have crossed age of minimum 21 years on the August 1st of examination year.

You can check out the detailed eligibility criteria for UPSC IAS from the link given below :-

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

I hope this information helps you.

Good Luck!!