sir,i got 41.14 percentile and rank 624340 in jee mains from sc categery and i have scored 60% on 10+2... can i get chance in any ni and iit's???

Dear student,

This year nta has set jee mains qualifying cut off for sc category as 50 percentile.
And your percentile is less than the qualifying percentile score. So you are not eligible to give jee advanced and you cannot get any seat in nits.
Also your class 12th aggregate percentage is 60 percent so still you are counted disqualified in giving jee advanced exam as you have not passed the eligibility criteria for jee advanced. As per the revised eligibility criteria candidates that have passed their class 12th exam irrespective of any percentage is eligible to give jee advanced.
But still if you have passed your class 12th examination you are not eligible to give jee advanced because you haven't cleared the qualifying cutoff score set by nta in jee mains 2020

Better you take a drop this year and prepare once again for jee mains and advanced.
Or you can try for some other state colleges or some private institutions.
You can check out college predictor link to get idea about the college that you may get on basis of your percentile score:-

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer