According to JEE Main 2023 Eligibility Criteria, candidates who have passed Class 12th in 2021, 2022 or are appearing in 2023 are eligible to apply for the exam. There is no-age limit in JEE Main. NTA has re-introduced 75% criteria in JEE Main 2023. General/OBC candidates must have at least 75% in Class 12th to be eligible for admission and SC/ST candidates require 65% marks.