Hi RanonBanerjee,
Yes - many Programs now accept both the GMAT and GRE Scores as part of the application process. Your broader questions are ultimately Admissions questions though, so you would likely find it beneficial to speak with an Admissions Expert about your overall profile and plans. Those Experts should be able to answer your Admissions questions and help define the specific areas of your profile that could use some improvement. There's a Forum full of those Experts here:
https://gmatclub.com/forum/ask-admissio ... tants-124/1) Have you taken either the GMAT or GRE yet (and if you have, then how did you score?)?
2) When are you planning to apply to Business School and what Programs are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich