You must fulfill each and every one of the following five criteria to appear in JEE (Advanced).
Criterion 1: Performance in JEE (Main)
You should be among the top 2,20,000 (including all categories) by scoring positive marks in Paper‐1 of JEE (Main). The percentages of various categories are: 27% for OBC‐NCL, 15% for SC, 7.5% for ST and the remaining 50.5% is OPEN for all. Within each of these four categories, 3% horizontal reservation is available for PwD (including Dyslexic) candidates.
Criterion 2: Age Limit
You should have been born on or after October 1, 1992 (For 2017 exam). Five years relaxation is given to SC, ST and PwD candidates, i.e., these candidates should have been born on or after October 1, 1987.
Criterion 3: Number of Attempts
You can attempt JEE (Advanced) a maximum of two times in consecutive years. It should be your either first attempt or second consecutive attempt.
Criterion 4: Appearance in Class XII (or equivalent) Examination
You should have appeared for the Class XII (or equivalent) examination for the first time in either 2016 or 2017. However, candidates whose Class XII (or equivalent) examination Board results for the academic year 2014‐15 were declared after June 2015 are eligible to appear in JEE (Advanced) 2017.
Criterion 5: Earlier Admission at IITs
You should not have been admitted in an IIT irrespective of whether or not you continued in the program OR accepted the IIT seat by reporting at a reporting centre in the past. The candidates whose admission at IITs was cancelled are also not eligible to appear in JEE (Advanced).