Candidates who have passed class 10+2 or equivalent examination in 2016 or 2017 or those who will be appearing in class XII or any other equivalent examination in 2018 will be eligible to appear in JEE Main 2018. Those candidates who have passed class 10+2 or any other equivalent examination in 2015 or before and those who will appear in 2019 or later will not be eligible to appear in JEE Main 2018. Candidates who have appeared for their class 12 in 2015, failed in 2015 but have appeared again in 2016 and passed are not eligible for JEE Main 2018.

 Best of luck.