law: Indian Contract Act, 1872 
  3. Communication, acceptance and
  
  revocation of proposals
  The communication of proposals, the acceptance of proposals, and
  
  the revocation of proposals and acceptances, respectively, are deemed to be
  
  made by any act or omission of the party proposing, accepting or revoking, by
  
  which he intends to communicate such proposal, acceptance or revocation, or
  
  which has the effect of communicating it.