Specified debentures under Section 80L: designation of secured, redeemable, non convertible taxable bonds for a public sector issuer. Central Government, invoking clause (ii) of sub section (1) of Section 80L of the Income tax Act, specifies secured, redeemable, non convertible and taxable debentures in the nature of bonds issued by Steel Authority of India Limited, identifying the series designation, fixed denomination, stated interest payable half yearly and distinctive numbering for the purpose of that provision.