Hey Sai,

For being eligible to appear in the JEE ADVANCED Exam and get admission into IITs, a student should score at least 75% in his Class XII Board Examinations, if he/she belongs to General or OBC-NCL Category . If the candidate belongs to Schedule Caste (SC) or Schedule Tribe (ST) Category , he/she must secure at least 60% marks in his Class XII Boards.

As you have scored 84% marks, so you have definitely crossed the barrier for the minimum criteria of marks, hence you can definitely appear for JEE ADVANCED Exam. Hope you have got your question answered, and wish you ALL THE BEST.