Well, brother it would be easier for me to decide if you had told your JEE mains SC rank and your home state.

But still, with this percentile, your rank would be around CRL - 3lac. 

With this rank a general or an OBC, students hold alomst nil chances of getting a seat at NIT/IIIT.

But since you being from SC category, so you can get a seat at a mediocre to lower rank NIT

Thank You 

Hello Sanskar

Depending on last year's cutoff it will be difficult to get admission in NIT (National Institute of Technology). But you can surely check for some more state colleges that are worth taking admission in. And it is also advisable to take an year and prepare again with full enthusiasm. 

You can predict the college by your percentile from the link given below from careers 360 -

Https://engineering.careers360.com/jee-main-college-predictor

You can use the above link by copying and pasting it in the url bar of your browser.

All the best!