law: Information Technology Act, 2000
  11. Attribution of electronic records.- 
  An electronic record shall be attributed to
  
  the originator,- 
  (a) if it was sent by the originator himself;
  (b) by a person who had the authority to act
  
  on behalf of the originator in respect of that electronic record; or
  (c) by an information system programmed by or
  
  on behalf of the originator to operate automatically.