law: Companies Act, 2013 
  20.
  
    Service
  
  of documents.
  1.      A document may be
  
  served on a company or an officer thereof by sending it to the company or the
  
  officer at the registered office of the company by registered post or by speed
  
  post or by courier service or by leaving it at its registered office or by
  
  means of such electronic or other mode as may be prescribed:
  Provided
  
  that where securities are held with a depository, the records of the beneficial
  
  ownership may be served by such depository on the company by means of
  
  electronic or other mode.
  1.     
  2.      Save as provided in
  
  this Act or the rules made there under for filing of documents with the
  
  Registrar in electronic mode, a document may be served on Registrar or any
  
  member by sending it to him by post or by registered post or by speed post or
  
  by courier or by delivering at his office or address, or by such electronic or
  
  other mode as may be prescribed:
  Provided
  
  that a member may request for delivery of any document through a particular
  
  mode, for which he shall pay such fees as may be determined by the company in
  
  its annual general meeting.
  Explanation .— For the purposes
  
  of this section, the term ‘‘courier’’ means a person or agency which delivers
  
  the document and provides proof of its delivery.