Hey Girraj, 

If you are having reservation under PwD category then hopefully these marks are sufficient to get you a seat in IIT, otherwise for general category it is difficult to get there. 

But you can surely try for other institutions which you have stated above. 

The minimum marks to get in to the jee mains NIT government is around  above 120 marks is well and good it is different for nit  to nit it is also depends on category and competition in that particular year 

So if you mention category also I can help you further more 

All the best