law: Negotiable Instruments Act, 1881 
  21. "At sight", "On presentment",
  
  "After sight" 
  In a promissory note or bill of exchange the expressions
  
  "at sight" and "on presentment" means on demand. The
  
  expression "after sight" means, in a promissory note, after
  
  presentment for sight, and, in a bill of exchange after acceptance, or noting
  
  for non-acceptance, or protest for non-acceptance.