Air 19403 can easily get you admission in Good NIT's , I will recommend you to first decide what is more important for you the college or the branch.

This situation arises when you have to choose between a good branch at an medium NIT versus a medium branch at a Famous NIT.

If you are clear with the branches then you should fill only those banches among the Top NIT's and also check for the home state quota as well. It also plays a important role.