law: Negotiable Instruments Act, 1881 
  94. Mode in which notice may be given 
  Notice of dishonor may be given to a duly authorized agent of
  
  the person to whom it is required to be given, or, where he has died, to his
  
  legal representative, or, where he has been declared an insolvent, to his
  
  assignee; may be oral or written; may, if written, be sent by post; and may be
  
  in any form; but it must inform the party to whom it is given, either in
  
  express terms or by reasonable intendment, that the instrument has been
  
  dishonored, and in what way, and that he will be held liable thereon; and it
  
  must be given within a reasonable time after dishonor, at the place of business
  
  or (in case such party has no place of business) at the residence of the party
  
  for whom it is intended.
  If the notice is duly directed and sent by post and miscarries,
  
  such miscarriage does not render the notice invalid.