Classify by duration of bonds : short-term bonds, medium-term bonds, or long-term bonds
Classify by coupon types : fixed rate coupon bonds, floating rate coupon bonds, compound interest bonds, and zero coupon bond
Classify by issuing types :
Scrip : the bond issued in a certificate or other instruments with the name of the bondholder.
Scripless : a bond issued in the form of entries and not embodied in or represented by a certificate or other instrument