Anybody who dreams of studying in a graduate school abroad, especially an MS STEM degree, has to sit for a standardised test. As a student visa, the score of a standardised test is mandatory for admission to most of the universities. There are a few tests which are commonly required for admission to certain degrees in universities abroad: one of them is the GRE General Test.
This is a companion discussion topic for the original entry at https://www.gyandhan.com/blogs/what-is-gre