Yes. you can apply for NITs with you SAT Subject Score. NITs consider SAT scores for NRIs and Foreigners only through the DASA quota. 

Provided your last four years of schooling is in a foreign country, or you should have a foreign passport.And you should have at least 60 marks in Physics Chemistry and Math individually at the 12th with a total mark of not less than 60 %. These are just your entry criteria, but your admit will be based on SAT-II score only.

You can check below what score accepted by NITs

DASA CIWG | Branch wise cutoffs | Round 1, 2, 3