Section 18

Where any immovable property, not being State land, is needed for the purposes of the Authority, the Authority may request and the President may if he thinks fit direct the acquisition of that property; and in such a case the property may be acquired in accordance with the provisions of any written law relating to the acquisition of land for a public purpose, and any declaration required under such written law that the property is so needed may be made (notwithstanding that compensation is to be paid out of the funds of the Authority) and the declaration shall have effect as if it were a declaration that such property is needed for a public purpose made in accordance with that written law.