There are plenty of colleges in abroad which is providing Masters in engineering management :-

Univeristy of sheffield, UTS sydney, University of glasgow, Brunel university, nottingham trent university

And about GRE ? The GRE  ( Graduate Record Exam ) Test is the standardised test used to get admissions in various graduate schools or business graduate schools in various English speaking countries, especially the United States. More than 100,000 graduate school applicants from approximately 160 countries take the GRE General Test at 700 test centers. Aspirants interested in pursuing a master's degree, specialised master's course, MS, MBA, MEM or doctoral degree can sit for the GRE Test.