The eligibility criteria for JEE Advanced 2013 is-
• You must have scored 60% (55% for SC/ST/OBC Students) in 10+2 board.
• For those students who appear in their Board exams for the first time in 2013, the eligibility criteria will remain ‘top 20 percentile of the successful candidates’ in their Boards, category-wise.
NOTE: This will be a one-time exception for JEE (Advanced) 2013 only.
All about JEE (Advanced) 2013 - Dates, Exam Pattern, Syllabus, Eligibility Criteria
Format for JEE (Advanced) may Change in 2014: IIT Bombay Website
Advanced IIT-JEE 2013 to have Same Old Format: Only Multiple-Choice Questions (MCQs)
All the best !!