Hello,
Since candidates belonging to SC/ST category must have passed 10+2 or its equivalent with atleast 65% aggregate marks to be eligible to get admission in IITs/NITs/IIITs you will not face any problem.You will still be eligible to get admission in IITs/NITs/IIITs as you have scored above 65% aggregate in qualifying exam.You qualify in JEE main too.
You may try our JEE knockout program
https://learn.careers360.com/knockout-jee-main-april/
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