Hello..!

To be honest, I personally don't believe in taking drop because the stress level would be too much which makes the probability of doing better quite less. However, nothing is impossible, so if you are quite determined and are sure that you'll do better, then go for it.

Now let's consider you won't take drop.

If you prefer branch more, then go for NIT rourkela EIE. However, if that's not the case then, take up any one of the other three according to your convinience but i would like to suggest NIT warangal Chemical, as its one of the best.

atlast, the decision has to be yours. 

All the best!