First directors of a private limited company

Ishwar Dayal Sharma (Self employed) (47 Points)

13 April 2012  
Hi everyone!
 
Had one qeury. There is one private limited company incorporated in year 2008. At the time of incorporation, 4 directors were appointed as 'First Directors' by naming in MOA & AOA of the Company.
Whether it was required to retire them in the first annual general meeting of the Company and re-appoint them? AOA and MOA of the company are silent on this issue. If they were required, what would be consequeneces as company did not retire and reappoint them?
 
Can anyone throw some light on this?