Will depend on your CV –
- Functional expertise you have gained in your family business
- Industry where your family business is operating
- Pedigree (UG institute mostly)
- Other achievements (extra curriculars)
As you can see the requirements are similar for you as for any other PGP student who has a corporate experience. ISB is a great place to make a functional and sector shift (lot of people make both) if you show case your strengths and achievements well on your resume. Startup roles and corporate roles where skills needed match with yours will be eager to take you.