Hi Bharat,
It's been over a year since we last discussed your GMAT studies - and it sounds as though it has been some time since you were consistently studying. Did you end up applying to Schools with your 680 or did your original application plans change?
GMAC has publicly stated that the Official Score that you earn on Test Day is within +/- 30 points of actual ability. Your 2 Official Scores show that you essentially performed the same each time (about 660 +/- a few points) - so even though you took your Exams almost 1 year apart, your overall response to the Exam was remarkably similar. You handle certain aspects of the GMAT consistently well, but you also make certain consistent mistakes. To consistently score at the 740+ level, you're going to have to make some significant changes to how you "see" (and respond to) the overall Exam.
Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on your overall studies to date and your goals:
1) Going back to 2019, how long have you studied in total?
2) What study materials have you used over the course of ALL of your studies? What “brands” of CATs/mocks have you used?
3) When are you planning to apply to Business School and what Schools are you planning to apply to?
We originally went over your ESR for your 1st attempt - and if you have the ESR for your 2nd attempt, I'll be happy to analyze that for you as well. There will likely be some underlying patterns in terms of how you approached the Quant and Verbal sections - and that can help to better define what you'll need to focus on during this next phase of your studies.
GMAT assassins aren't born, they're made,
Rich