hii sai

yeah its great you have 9k rank , for sure you will get NIT for sure as its very difficult to say which branch or NIT you will get so i would like to suggest check the college predictor and see the last year cut off in the below link

https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits

https://engineering.careers360.com/jee-main-college-predictor

regards