law: Companies Act, 1956
  Sec 53    -     Service
  
  of documents on members by company. 
  (1) A document may be served by a company on
  
  any member thereof either personally, or by sending it by post to him to his
  
  registered address, or if he has no registered address in India, to the
  
  address, if any, within India supplied by him to the company for the giving of
  
  notices to him.
  (2) Where a document is sent by post:
  (a) service thereof shall be deemed to be
  
  effected by properly addressing, prepaying and posting a letter containing the
  
  document, provided that where a member has intimated to the company in advance
  
  that documents should be sent to him under a certificate of posting or by
  
  registered post with or without acknowledgement due and has deposited with the
  
  company a sum sufficient to defray the expenses of doing so, service of the
  
  document shall not be deemed to be effected unless it is sent in the manner
  
  intimated by the member; and
  (b) such service shall be deemed to have been
  
  effected : 
  (i) in the case of a notice of a meeting, at
  
  the expiration of forty-eight hours after the letter containing the same is
  
  posted, and
  (ii) in any other case, at the time at which
  
  the letter would be delivered in the ordinary course of post.
  (3) A document advertised in a newspaper
  
  circulating in the neighborhood of the registered office of the company shall
  
  be deemed to be duly served on the day on which the advertisement appears, on
  
  every member of the company who has no registered address in India and has not
  
  supplied to the company an address within India for the giving of notices to
  
  him.
  (4) A document may be served by the company on
  
  the joint-holders of a share by serving it on the joint-holder named first in
  
  the register in respect of the share.
  (5) A document may be served by the company on
  
  the persons entitled to a share in consequence of the death or insolvency of a
  
  member by sending it through the post in a prepaid letter addressed to them by
  
  name, or by the title of representatives of the deceased, or assignees of the
  
  insolvent, or by any like description, at the address, if any, in India
  
  supplied for the purpose by the persons claiming to be so entitled, or until
  
  such an address has been so supplied, by serving the document in any manner in
  
  which it might have been served if the death or insolvency had not occurred.