The new Joint Entrance Examination will be held from 2013, where in the IITís will have 50% weightage for board marks and 50% for main test for screening while shortlisting will be done through an advanced examination that will be conducted the same day, other centrally funded institutes including IISERís will have weightage of 40% for 12th board, 40% for main test and 30% for advanced test.
While there are so many boards including state and central that conduct 12th examinations, MHRD has given the responsibility of normalizing those scores to Indian Statistical Institute.
The proposed formula for normalizing the scores across all the boards to generate percentile rank is (cl+0.5 fi)/N x 100, where cl is the count of all scores less than the score of interest, fi is the frequency of the score of interest (the number of students with the same score) and N is the number of examines in the sample.
Percentile rank and not absolute marks will be taken for weightage and rank will be given up to 9 decimal places in order to enable the tie-breaks. Here is a list of important things for JEE examination that will be conducted from 2013.