law: Indian Medicine Central Council Act, 1970 
  7. Term of office of President, Vice-President
  
  and members of Central Council 
  (1) The President, a Vice-President or a
  
  member of the Central Council shall hold office for a term of five years from
  
  the date of his election or nomination, as the case may be, or until his
  
  successor shall have been duly elected or nominated, whichever is longer.
  (2) An elected or nominated member shall be
  
  deemed to have vacated his seat if he is absent without-excuse, sufficient in
  
  the opinion of the Central Council, from three consecutive ordinary meetings of
  
  the Central Council or, in the case of a member elected under clause (a) of
  
  sub-section (1) of section 3, if he ceases to be enrolled on the concerned
  
  State Register of Indian Medicine, or in the case of a member elected under
  
  clause (b) of that sub-section, if he ceases to be a member of the Faculty or
  
  Department (by whatever name called) of Indian Medicine of the University
  
  concerned.
  (3) A casual vacancy in the Central Council 
  
  shall be filled by election or nomination, as the case may be, and the person 
  
  elected or nominated to fill the vacancy shall hold office only for the 
  
  remainder of the term for which the member whose place he takes was elected or 
  
  nominated
  (4) Members of the Central Council shall be
  
  eligible for re-election or re-nomination.
  (5) Where the said term of five years is about
  
  to expire in respect of any member, a successor may be elected or nominated at
  
  any time within three months before the said term expires but he shall not
  
  assume office until the said term has expired.