Hello Abhishek.

Good to hear from you. The right choice for depends completely on your passion. If you want a career in chip designing, etc you should go for VLSI or if you want to do stuff related to measurements, etc you should opt for Instrumentation. And both the NITs are equally good colleges to join. So, choose your passion.

Thank you.

Hello,

The rating given for NIT ,rourkela is 4.3 overall.

It is regarded as best compared with the other.

Both of the NITs are good 

Overall , rourkela has got few bonus points yo go for.

Now my humble suggestion is please try to find first about the future scope of VLSI and instrumention.

Then see if you are interested or not

Then look at my answer below.

This is just a suggestion,

VLSI is good infact harder to catch ,once caught you get attractive packages.

Wish you good luck.