Hello ,
Yes you can be eligibility criteria says that :-
And LLB degree is a valid law degree .
So, yes you can become a civil judge after 3 years LLB degree .
You can check this article for some encouragement :-
https://www.google.com/amp/s/law.careers360.com/articles/indian-judicial-services-examination-what-and-how-prepare/amp
Good Luck .
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