Omission of section 80K removes the specified income tax deduction under the Finance Act, effective from the Act's commencement. Omission of section 80K removes a specific income tax provision by legislative amendment: the Finance Act, 1986 deletes Section 80K of the Income tax Act, with the omission taking effect from the commencement of the next assessment year specified in the Act, constituting a direct statutory repeal of that deduction provision.