Hello,
.
Yes,you are eligible for 3 year LLB course as you passed out with the percentage that is required.
.
Here is the eligibility criteria fore years LLB course,
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• One should be at least 17 years old
• One should have graduation with 45 and there is 5%  relaxation for reserved category
• There is no upper age limit

point to be noted is every college has there own eligiblity criteria  like DU and BHU needs 50%
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But don't be worried you have scored maximum percentage that one should need for Admission either it may be any college
.
Entrance exams for LLB,

• DU LLB entrance exam
• BHU-UET , benaras Hindu university
• LSAT, jindal University
• Punjab university

And so on colleges conduct there own entrance exam.
here is the link providing the information regarding the  entrance exams conducted by colleges
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https://law.careers360.com/articles/9564-law-entrance-tests