Dear Aspirant, hope you are doing well. Rank of 145k is quite on a lower side. So according to previous year's trends and cutoffs, it is not possible to get into NITS. If you belong to home state category of north eastern NITS like Arunachal Pradesh, Meghalaya, Tripura, Manipur, Mizoram then there are chances otherwise not. You can check detailed cutoffs here:- http://engineering.careers360.com/articles/jee-main-cutoff . Hope it helps!! Good luck!!