[A]
An order from a bank to another bank abroad authorizing the payment of a particular amount to a person named in the letter
[B]
An unconditional undertaking given by a bank ensuing the payment of a particular amount to the drawee at a given date
[C]
Letter by a bank to a person starting the terms and conditions of the loan sanctioned to him by the bank
[D]
Statement showing outstanding deposits and credits of a bank for a particular period