Notification No.S.O.3521 – Income Tax In exercise of the powers conferred by item (h) of sub-clause (iv) of clause (15) of section 10 of the Income-tax Act, 1961 (43 of 1961), the Central Government hereby specifies ” 10% Secured Redeemable NTPC Bonds, 1986–First Series ” issued by the National Thermal Power Corporation Limited, New Delhi, for the purpose of the said item