Hi

It's quite difficult to predict because cut off  depends upon various factors like

------------) number of students that appeared in the  jee main exam,

------------) kind of marks obtained by them ,

------------)  toughness level of the jee main examination

------------)  number of seats available etc

But yes,

As per 2020 cut off,

>>>>>>> with 305 sc rank in jee main paper 2

Yes, you have chances for NITs

For example,

In 6th round of josaa counselling 2020,

----------) Under other  state, 350 sc rank for gender female got  Architecture (5 Years, Bachelor of Architecture) in National Institute of Technology Patna

You can check the same at

https://josaa.nic.in/Result/Result/currentorcr.aspx

This prediction is on the past year data basis but  cut closing rank for colleges changes every year depending upon factors like number of candidates that write jee main examination, difficulty level of the question paper for different shifts of jee main etc so

To have a personalised report on your chances of getting a college you can go through our college predictor, it will give you complete list of colleges which you can get on the basis of the category you belong to,  your home state, your gender etc, the link for  jee main college predictor is provided below

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Thank you