The eligibility criteria for ISB Hyderabad admission is 

• Undergraduate degree or a degree equivalent to it
• A TOEFL Certification
• 2 or more years of work experience
• A very competitive GMAT score (around 660)

These are the factors that are necessary to get an offer from ISB Hyderabad. There are a few additional factors that might increase your chances of admission. These include

• Writing excellent essays
• Your achievements in your work life
• Your social worker 

Working on the above factors can compensate for your low academic background or any other shortcomings in your overall profile.