GMAT Selection perspectives of good universities

i got 74% in 10th and 75% in 12th.

Now i want to ask whether i shall go for GMAT or not.i mean will my application be entertained by good universities after clearing GMAT exam with good scores.
Or if academic scores are not excellent ,then GMAT should not be an higher education option??

kindly suggest me the right thought.Image may be NSFW.
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