Hello Jitendra,

You must be aware of the fact that for admission in NITs, IIITs and IITs you need to have an aggregate of at least 75 percentage in your CBSE Boards or to be in top 20 percentile of your respective boards. Now if you want to give improvement examination in order to increase your percentage in class 12th boards, then its fine. If you can get better marks so as to be in top 20 percentile of your boards, then you are eligible to get a seat in NITs, IIITs and IITs based on your JEE Mains rank and JEE Advanced rank.

I hope this helps. In case of any further queries on this, please ask me in the comments.

Joint Entrance Examination (Main)

Answer Key | Eligibility | Application | Preparation Tips | Question Paper | Admit Card | Result | Accepting Colleges

Get Updates Brochure