Hello,

The eligibility criteria to get admission in NIT colleges, you must score 75% or above in your class 12. This percentage includes all the subjects that you have studied in your intermediate level. If your percentage is below 75% , then you can not get admission in NITs, despite of scoring very good rank.
For more details, visit -

http://www.engineering.careers360.com/articles/new-eligibility-criteria-for-nits-and-iiits-admission-says-mhrd/amp

Hope this helps,

Good luck!

Hello Sanjay
For elligiblity for Jee main is minimum 75% Marks in board all over subject that means top five excluding pcm .
Separate marks is not mandatory for elligiblity .
Thanks