Which college should I choose between IIM Shillong and NMIMS?

When it comes to long-term goals, you must go for IIM Shillong as IIM is a brand in itself. It will give you an advantage in terms of opportunities in India as well as hotspots close to India i.e. Dubai, Hong Kong, Singapore. Most of the recruiters in Asia, Europe, or the United States are aware of the reputation IIMs hold. Most importantly, there is no competition between IIMs and NMIMS here.

Some facts regarding both the Institutes so that you can make better choices out of it.

You may find a short-term advantage in NMIMS due to its location in Mumbai. It offers great placement opportunities for Finance but it will not be a good choice for long-term

If you have entered a particular industry in the Finance sector and you are constantly hopping from back-office IB to front-office IB and then PE. By doing so, your institution begins to matter less over the real experience you have had. In this type of situation, you should care only about your role in a job and the work done by you. 

Making career choices is difficult but your focus must be on the industries and their benefits. And if you are trying to enter into General Management, FMCG or Marketing, the answer to this question may seem different for you.