The Application Process

My profile:
10th standard: 92%
12th Standard: 86%
Graduation: B.E. in Mechanical Engineering:75% ( with Honors) from Bengal Engineering & Science University,Shibpur( Now IIEST)
Began my career in Sales & Marketing Dept of Construction Equipment Business Larsen & Toubro Ltd., and then moved to divisional marketing team within the same company.
exp 42 months this Dec 2015
GMAT Score:690 (QA 50, VA33)
I am looking for ISB. Should I consider a retake??