Candidates are required to attain 21 years as on 1st August of the appearing year.in your case to be eligible for upsc you should be within 32 years of years age as age limit is 32 years for general category and there is 3 years relaxation if you belong to obc category and for sc st category 5 years relaxation is given.if you are in general category then this is your last chance make the most of it.

Further, candidates must have Graduation from any recognized university and should be of indian nationality.exam conduucted in 3 phases i.e pre,mains and interview.in pre there will be two separate papers one for general studies and other paper is CSAT. general studies includes subjects Current National and gf Events, History of Indian Heritage and Culture and History of Indian National Movement, Indian and World Geography, Socio-economic Development, General issues concerning Environmental Ecology etc.for CSAT topics included are general aptitude,numerical ability,Problem-solving skills and decision-making ability.for mains there is Optional Subject -Paper I and Paper-II (250 Marks Each) which includes 6 paper of general studies and lastly interview is conducted for final selection.to help you with your preparation here are experts tips hope you get some help.

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

Hello Aspirant ,

Assuming that you are from general category , No  You are not eligible to attempt UPSC 2023 as the age limit for UPSC 2023 is that you should be born after 1 August of 1991 but since you were born before this age limit( i.e in 10 July 1991) you are not eligible .

Other eligibility criteria for this exam is that you must have a bachelors degree from any stream .

Hope this solves your query .