It depends on your future plan. If you want good salary packages after your master's, then doing an MS from the US will be better. Landing a good job with a decent salary package after master's will be difficult in India, except maybe some old IIT. While the scope for work after doing an MS from the US is huge. Many major MNCs have their headquarters in Silicon Valley. The job profiles offered are also comparably better there. But doing an MS from the US is no mean feat. It’s expensive and risky.
If you are interested in pursuing research, you should do your research under the guidance of a good professor. Go through the website of different reputed universities around the world and look through the profile of the professors from your field. Look at their publications, talk to some of their students, and find out how active they are in research. These are some of the important aspects of choosing a guide.
The decision of pursuing Masters from any university in the country or the US depends on the basis of your reasoning. Following are a few fields that might have interested you in pursuing master’s.
Research
Job
There are certain drawbacks to this as well. Master’s from US can be on the expensive side and more of a risk. If you are planning to pursue the degree after a loan then you should rethink your choices. Paying out a hefty loan in India from an Indian salary will severely strain your finances. There are ways to work around this issue. But, it's still a risk.