Circular : No. 213 -Income Tax Section 32A, introduced by the Finance Act, 1976, provides for a deduction at a specified rate by way of investment allowance in respect, inter alia, of machinery or plant installed after 31st March, 1976, for the purposes of business of construction, manufacture or production of any one or more of the articles or things specified in the list in the Ninth Schedule to the Income-tax Act. Item No. 21 of
