law: Company Secretaries Act, 1980
  7. Members to be Known as Company Secretaries
  
  Every member of the Institute in practice shall,
  
  and any other member may, use the designation of a Company Secretary and no
  
  member using such designation shall use any other description, whether in
  
  addition thereto or in substitution therefor :
  
  Provided that nothing in this section shall be deemed to prohibit any
  
  such member from adding any other description or letters to his name, if
  
  entitled thereto, to indicate membership of such other institute whether in
  
  India or elsewhere as may be recognized in this behalf by the Council or any
  
  other qualification that he may possess, or to prohibit a firm, all the
  
  partners of which are members of the Institute and in practice, from being
  
  known by its firm name as Company Secretaries.