Hello,

Yes he is eligible to give Joint Entrance examination mains 2021 exam. The eligibility criteria for Joint Entrance examination states that the candidate who are going to give their 10+2 level in 2021 and those who have already passed their 10+2 level are eligible to give Joint Entrance examination. There is no age limit. However, the candidate has to pass 10+2 or equivalent exam in 2019 or 2020.