Hello Mohammed

As nearly 2.2 lakhs students will qualify for jee advanced .

So you can assume than nearly 85-90 percentile marks you should score to qualify jee mains.( It will vary depending upon exact statistics and other factors).

So good luck.

In this year, two jee mains has been conducted. Of these 2, percentile of only 1 is available. Acc. To previous years marks vs rank listing, 84 percentile will make one person eligible for jee advanced. Since, the best of two will be considered for jee advanced, if you got first wrong, you can always improve in 2nd and give advanced.