Hey there 

You have a low rank so you have very less chances of getting nit or iiit in regular rounds but in spot round you have chances of getting nit or iiit.

Check JEE main cutoff

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/jee-main-cutoff/amp&ved=2ahUKEwjwh6jchufiAhULRY8KHUq_AkoQFjAAegQIBRAB&usg=AOvVaw0ay0p7xaI0Sc82xeEH0ED5&ampcf=1

Good luck