Hello. 

With your Rank, I don't think that you will get in the top 5 NITs, but there is a chance that you can get in Surat, Nagpur, Goa, Hamirpur, etc.

Also, you can try in BIT Mesra, Ranchi. If you want to study in a good college, and want to have good placements, then this is the college. 

But don't worry. Wait till the last round of JoSAA. If you don't get admissions in the top NITs in these 7 rounds, then there is one more chance in CSAB. This consists of two rounds, and is conducted only after all the rounds of JoSAA are completed.

All the best!