Ani, 

It all depends on which college you want there's NITs like MANIPUR, AP, NAGALAND. 

they are not good nits. 

If we talk about GFTI there is PEC, BIT MESRA which are very good and there some like jk institute of applied science which is like a low level government college. 

There are around 80s colleges which take jee main score. Every college has different ranking. 

Tell me the college you want to join.  You want to join NIT trichy or nit manipur etc.  Then only I will be able to help you. 

Mention the college you wanna join in comment section.  For your help i am providing you the link of cut off which is opening closing rank.  It's not possible to predict the marks admission are done on basis of rank.. 

https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/jee-main-cutoff/amp&ved=2ahUKEwjA3MK1kZ3hAhXdh3AKHSieBTcQFjAJegQIAhAB&usg=AOvVaw0ay0p7xaI0Sc82xeEH0ED5&ampcf=1

Hello,

Here I am sharing you the link you can go through this to know about the opening and closing ranks :-Https://engineering.careers360.com/articles/nits-cutoff-for-b-tech-computer-science-and-engineering

Best of luck!!