Hi, so basically UPSC's eligibility criteria is very simple. You have to complete graduation from any recognised University. And you must be atleast 21(years of age). The age limit is 32(years of age) for general and varies with different category.

The number of attempts are 6 and this too varies with different category.

You must be a citizen of India for positions such as IAS and IPS.

So to sum up, you are definitely eligible for appearing in this exam.

Hope this is helpful.