Hello Sunil, According to the previous year trends, you can get rank near about 26k to 30k. Actually, it is more than enough even to get into top nits but still, it depends on a variety of factors in the order of importance mentioned below:

• Category: If general category, don’t lose hope 164 is not a bad mark you will land up if lucky you will land up in a mediocre branch in top NITs or in mediocre NITs.
• Home state: Many people ignore this, but it is one of the imp factors.

I have been through all this and I think you got a good shot to getting into any of the NITS if not, NIT is not the end of the road there are far more better colleges than NITs BEST OF LUCK!