law: Negotiable Instruments Act, 1881 
  91. Dishonor by non-acceptance  
  A bill of exchange is said to be dishonored by non-acceptance
  
  when the drawees, or one of several drawees not being partners, makes default
  
  in acceptance upon being duly required to accept the bill, or where presentment
  
  is excused and the bill is not accepted.
  Where the drawee is incompetent to contract, or the acceptance
  
  is qualified the bill may be treated as dishonored.