Seriously  SC and ST people are the most previliaged in this aspect...their cut off is almost 10 marks less than  general category..

And if you qualify gate just apply CCMT, you will definitely get seat in any Nit  at least spot councelling..don't listen to people who say that you won't get into any with this score and all such bull shit comments...and regret after every thing goes out  from  your hand..if just getting mtech seat is your priority...else  depends on the area...usually  design, thermal are hot cakes...you can't get them unless your score is 550+ for obc and 640+ for general...the cutoff purely depends on the area and college...

You can get into lower NITs in the National Spot Round (NSR).And yes, you should definitely apply for CCMT counselling. You have chances to get into NITs as well. You need to fill the CCMT counselling and when seats remain vacant even after the rounds of CCMT, NITs conduct NSR where you might have to travel to the individual NITs. The probability of selection are higher by then because of vacant seats. So, go ahead and fill it.