Thanks for asking as to how to become a business executive.
Now the important thing to consider here is that we need to take into consideration is there are certain skills that you need to hone in yourself.
Business writing skills
Team building skills
To start with as regardless of which field you venture, you need to develop theses skills as in any organization it is not your knowledge assessment rather your personality assessment that is measured by your experience under various internships/pro
Executive MBA is a non University course offered majority by private institutes. Compared to this, part time three year MBA is a University offered course.
Executive MBA is highly recommended only when you have at least 7 years of experience in the field and you wish to add the management education for growing and taking the leadership positions.
For IT professional, firstly PMP certification is highly recommended. However Executive MBA from a reputed BSchool like ISB or Symbiosis or FMS Delhi will add great value to the CV and will help you grow in IT industry.
Just to let you know, this is a career guidance platform and academic queries like yours are not apt here. Seems you are interested Secretarial Practice in Commerce stream.
However since I have studied Commerce and Company Secretaryship, I shall answer your question:
Minimum number of members for a public company is 7 (seven). Quorum for meetings of public companies is 5 (five).