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I think that would depend. Each school has its own process that it goes through when evaluating applicants. Which schools are you targeting?

I am targeting beyond top 30.

Emory University
USC Marshall
Purdue
NUS
Vanderbilt University: Owen
Nanyang Business School

You should take things in the right perspective, your score is not bad and there is so much you can do with it! Take a look here for example:
https://www.aringo.com/low_gmat.htm

gmat_abcd wrote:I have GMAT score 680 [V31, Q50] AWA 4, IR 7.

Will this score give me positive indication of admission?

Is AWA problematic?

I have 10 - 11 years of IT experience.

Is more work experience also problematic?

A score of 680 is good enough to get you into some schools in the top 20. Your AWA score will not be an issue. Having more experience can be a problem in terms of your age.Many schools give less preference to applicants in their 30's. But there are a lot of factors which can affect your admission. In addition to the GMAT score and work experience, your undergraduate GPA and extra-curriculars are important when applying to business schools. You will then need to create a stellar application to impress the admissions committee. The most important thing you need is a post-mba goal. Business schools give a lot of weightage to this. Download the free e-book on how to get into a top business school at : https://www.interviewbay.com/mba/how-to- ... -ebook.php

Good Luck!
www.interviewbay.com