Yes, GRE is widely accepted by most B-schools but not All. Make it a point to check if the schools you want to apply to accept GRE scores for MBA before you choose which test to take.
Overall, even though B-schools certainly have a preference for the GMAT, you can get in via the GRE as long as the schools you are interested in also accept the GRE.
If you’re looking to switch from GRE to GMAT, you need to consider how good your GRE scores are in the first place.
Switching over to the GMAT is a great idea if you want to apply to B-schools because they tend to have a preference for GMAT scores. GRE scores are converted to their GMAT equivalents through the ETS score comparison tool when your application is being processed. This is because B-schools consider reasoning skills to be a critical trait, and that’s exactly what the GMAT measures.
Just keep in mind that a score of 326 on the GRE will convert to a GMAT 700. So, if you have a 326+ score on the GRE, you can go ahead and apply. But if you have a low GRE score, we recommend that you take a GMAT practice test to see how well you fare. If you do well, you can simply switch over to taking the actual GMAT test.
The GRE tests the strength and depth of your knowledge more than your reasoning whereas the GMAT tests your reasoning abilities based on your knowledge.
While the two tests are alike, they do share many differences, making studying for them a different process altogether.
I would recommend you to go through this detailed article to know the difference between the
GMAT Vs GRE