Hello Aditya 

Ews category is introduced first time in jee  and it is difficult to say which college you will get or not .

But according to statistics ; it is difficult to get good nit with core branch ;you may get low ranked nits like ( srinagar ; Goa ; arunachal Pradesh; Silchar Raipur etc.)

Take part in couseling because ; anything can happen .

You have a fair chance to get state government or private colleges like YMCA ; Murthal ; PU ; cu ; Thapar ; uiet ; Delhi regional colleges etc.

Good luck