GRE Scores

You don't need a GMAT waiver if submitting the GRE score.  The university will review your GRE score as equivalent for MBA admissions, unless otherwise specified by the program. In short, you need to submit score of any one exam, if the university accepts both.

Most accredited U.S. universities offering MBA programs either accept the GRE or have flexible/test-optional policies. This page lists schools that officially accept the GRE for MBA admission.

If you send your GRE scores to the wrong university code, you can not reverse it. You must resend them through your ETS account using correct code. ETS charges an additional fee for every new report, so double-check details before sending next time.

Yeah, you can. On exam day, sending to 4 universities is free. If you wait, you pay. Log in later and pay the extra fee. It is like $35 per school. Watch out for the deadline. Colleges are strict.

Columbia University does not set any minimum eligible scores for international students who want to join the MS programs. But, it is needed for the students to make sure to score above 320 on the GRE and over 700 on GMAT for successful admission.

Also, students who scored nicely and performed well academically and were involved in relevant internships may get some sort of relief in standardized test scores. 

While Wharton UPenn does not have any cutoff for Indian students, they prefer to submit it to stand out . International students with an Engineering and Tech background aim to score a GMAT score of 730+ and a GRE score of 325+. International students who want to get admitted to Wharton must focus on various factors, including exceptional work experience, a recommendation letter, and an interview, rather than only test scores, which do not guarantee admission.

To gain admission to Purdue University,  it is important to prove English proficiency as Purdue courses are offered in English only. Below is the table showing different ELP Tests and the minimum scores required for the same: 

The Keck Graduate Institute provides a test option for GRE scores for graduate students. This means it is not necessary to submit the scores. However, some graduate programs require for GRE score as a basic eligibility factor. Students can take the GRE multiple times and update their best scores to their application records. The applicant also uses their standardized test score to compensate for their academic GPA. In addition, students must make sure that they focus on other mandatory things, such as extracurricular activities, relevant experience, and more, along with aiming for high scores.

Harvard University generally does not publish specific GRE cut-off scores for its programs. Instead, they use a holistic review. However, for MS admission in Harvard, you need to score between 155 to 170 for Verbal and Quantitative, and 4.0-5.0 for Analytical Writing.

Beyond USA, GRE scores are widely accepted for graduate programs in over 90 countries. Top study destinations include Canada, United Kingdom, Australia, Germany, Singapore, France, and the Netherlands. Many universities in these countries ask for the GRE scores at the time of Master's, PhD, and MBA admissions. Always check specific university requirements.