Hi Fenil, The basic Master's course requirement abroad for most programs is a good GRE score, GPA as well a good score in English proficiency test. The GRE is a standardized test used to get admissions in various graduate schools or business graduate schools in various English speaking countries, especially the United States. GRE General test measures a candidate’s verbal reasoning, quantitative reasoning, critical thinking and analytical writing skills
The deadline for Stanford MS programs is December 5, 2017, and decision are announced by End of March 2018.
Do revert if you need more information.

All about GRE

Hope this helps!!!