i have air sc 43243 rank , so am i aligible to take admission in nit's?
There is a chances of getting admission in NITs or GFTIS. Apart from NITs or GFTIS there are many state government autonomous engineering institute in different states of India. So you should appear for the JoSSA councelling as well as the counselling conducted by the different states such haryana, MP etc. You can have a look at the previous year cutoff of different NITs. https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits
For more information about the college you can use the college predictor tool.
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer