Hello aspirant,

Yes, you can apply for Indian Judicial Services Examination. The eligibility criteria says that,  a candidate should have a degree in LL.B and he/she has enrolled or qualified to be enrolled as an Advocate under the Advocates’ Act 1961. The age limit is usually between 21 to 35 years.

For more information you can visit:

https://law.careers360.com/articles/indian-judicial-services-examination-what-and-how-prepare

I hope that this will help.