@rohit
OMR sheet is not the only thing For ur benifit I summarise hereunder:
IIT should take a retest of IIT JEE 2010 due to following:
1.WRONG SUBJECT HEADINGS IN IIT PAPER
The subject headings on OMR sheet did not match with question nos. given below. The IIT authorities quite some time after the exam had started advised to ignore the subject headings and answer according to the serial numbers in the question paper
Students who had started to mark based on subject headings then had to rub off the markings (this has to be done very neatly as any residual markings can be picked while checking). This lead to waste of time, a precious commodity in an exam as competitive as IIT. Besides, students came under undue stress affecting their composure.
2.PARTIAL MARKING
For some questions (of total 45 marks) instructions mentioned that partial marks shall be given for partially correct answer, with no negative marking.
An extreme view put forward is that as there is no negative mark for any wrong answers, if all options are marked full marks should be given. Thus a student can get 45 marks without solving the questions.
IITs clarification is that to avail partial mark the number of choices shaded should not exceed the number of correct choices and must include at least one of the correct choices.
This is an assumption given after the exam is over. In no way could the instruction be interpreted like this by the students. I do not see how IIT marking scheme can take care of how students interpreted the unclear instructions and what effect it had.
3.MISTAKES IN HINDI PAPER
I have not seen the paper but as per reports in English version 6 questions were for 8 marks each ,whereas the Hindi version said 3 marks each. A JEE examinee who has to do a trade-off between time and gains (in terms of scored marks) may have made the wrong choice. In addition, certain questions were not printed.
IITs response is that all these are minor mistakes and will be taken care of during evaluation of papers. IIT IS NOT SAYING WHAT
EXACTLY IT INTENDS TO DO. I am sure they also do not know.
Clearly no amount of moderation can take care of all these BLUNDERS (not minor mistakes) as these have affects that may vary from student to student and can not be quantified.
IIT would need divine intervention to know how to take care of marks a student lost due to lost time/composure/making the wrong choices due to unclear/wrong instructions.
RETEST IS THE ONLY FAIR WAY OUT.