Hey there

Yes you can give union Public Service Commission exam if you follow the basic eligibility criteria mentioned below:

1. The candidate must have completed minimum 21 years of age.
2. The general category student can give 6 attempts of UPSC exam
3. Reserved category student can give 9 attempts.
4. The candidate must have completed his graduation as a minimum qualification from any specialisation or any stream.
5. The maximum age of the candidate can be 32 years.

For more: https://www.google.com/url?sa=t&source=web&rct=j&url=https://competition.careers360.com/exams/upsc-civil-services-exam/amp&ved=2ahUKEwivn4megsDzAhXarpUCHegBBrMQFnoECAUQAQ&sqi=2&usg=AOvVaw0YgHjPSGbCBqWgNlDAT28h&ampcf=1