Hey,

Though the official cut-off marks of JEE MAIN Paper 2 for top NITs has not released, still as per our assumption and previous year's details it can be estimated that despite being SC category student you don't have any kind of possibility to get admitted in topmost and esteemed NITs through 15% AIQ, but there's quite hope for 85% State quota. But you haven't mentioned your state in your question so it's quite difficult for us to make a decision about your admission chances. Still I would like to inform you that you've a little hope in NIT Bhopal, NIT Patna, NIT Raipur, NIT Nagpur etc through 85% Home State quota i.e. iff you belong to the respective states of these above mentioned colleges, then only you can get admitted in these colleges.

You can go through the following link:

https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning

In this regard, I think college predictor tool might be quite helpful:

Wish you all the best!!