Specified bonds under tax provision grant conditional benefit; transferee must notify issuer by registered post within sixty days. The Central Government specifies 7-year 13 per cent. taxable secured redeemable non-convertible bonds (3rd Series) issued by the Damodar Valley Corporation as qualifying for the tax benefit under clause (ii) of sub-section (1) of the relevant tax provision; transfer of such bonds by endorsement or delivery confers the benefit on the transferee only if the transferee informs the Corporation by registered post within sixty days of the transfer.