Hello Aspirant
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The candidate should be passed in 75+ marks in 10th class and +2 college /intermediate. For sc/st they should get minimum marks of 65 % in boards.you should cross the cutoff of jEE mains then only you are eligible for the jEE advance.
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If you have any questions once go through the below link to get an idea about eligibility criteria for jEE advance:

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-advanced-eligibility-criteria/amp
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If you have any questions further let me know.
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Thank you!!!