law: 8.Interest payable on delay in payment of cess .-
  
  If any employer fails to pay any amount of  cess payable under section 3 within the time specified in
  
  the order of assessment, such employer shall be liable to pay interest on the
  
  amount to be paid at the rate of two per cent. for every month or part of a
  
  month comprised in the period from the date on which such payment is due till
  
  such amount is actually paid.