Hey Ravina.

See ur marks might not be that enough for u to get qualified the JEE MAINS as it is a bit low score. Since the paper was little bit hard than the other shifts then also the cut off might not fall to this extent. If anyway u got qualified also that won't help in any manner as the rank u will get will be too low and not enough to get in the NITs. 

I m providing u a link for rank predictor.

https://engineering.careers360.com/jee-main-rank-predictor?utm_source=google-search&utm_medium=paid&utm_campaign=jeemain-rp

U can also check the college u might have if ur rank will be that much enough.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/jee-main-college-predictor&ved=2ahUKEwjZkMOY7s_hAhXm6XMBHbdcDiQQFjABegQIBRAB&usg=AOvVaw1pTMu5LewXe0n3JPiA8V2U

Ask of any query. Good luck