Is FMS a good choice over NITIE for operational management?

I would say that if you are certain that you want to pursue operations management/SCM, NITIE is the best option. I say this based on the reviews I got from my friends at the institutes. The type of possibilities you will have in this domain at NITIE will undoubtedly be greater than at any other B-school. Here is a brief overview of the institutes.

But irrespective of the Institutes, doing well in your career depends upon how passionate you are about your career and opportunities. 

About Institutes, you can conduct your own research based on the data given on their website as well as other considerations, bearing in mind your medium and long-term goals.