The new top 20 percentile-based eligibility criteria will affect the CBSE students to a major extent for getting admissions to Indian Institutes of Technology (IITs).The candidates of CBSE will have to be within the top 20 percentile of their Class 12 boards in order to be admitted to an IIT.It is tougher for CBSE students to be in the top 20 percentile.

It is compulsory for candidates who have appeared in the 12th board exam in 2012 to have 60% marks (55% for SC/ST/PD candidates) to secure seats in IITs.

Top 20 percentile rule will be applicable for those reappearing for the 2013 12th board exam (to improve their marks), if they use their 2013 exam results to apply for the JEE.Students who plan to use their 2012 results will be selected only on basis of the 60% eligibility rule. This will be a one-time exception.

For foreign students, the CBSE 20 percentile cut-off will be considered as the eligibility criteria.

Minimum academic qualification for appearing in JEE (MAIN) 2013

A candidate must have passed the final examination of 10+2 (Class XII) or its equivalent referred to as the qualifying examination. Those appearing in 10+2 (Class XII) final or equivalent examination in 2013 may also appear in JEE (MAIN) 2013 provisionally.

There will be objective type questions with four options of a single correct answer. For each incorrect response, one-fourth (1/4) marks would be deducted.

No deduction from the total score will, however, be made if no response is indicated for an item in the answer sheet.