dear shailesh it is myth that you cannot appear for jee main if have have 12th percentage below 75, the whole truth is that There is no percentage requirement for attempting and having a rank in JEE Mains.

But for admission in IITs, NITs, GFTIs, and IIITs, you must have either :-

• 75% aggregate in your class 12th board exams, or
• You should be in the top 20 percentile of your respective boards.