Upon sanction, declaration to be published giving particulars of land to be acquired

(1) Upon sanction of the scheme, the Government shall publish in the official Gazette a declaration stating the fact of such sanction and that the land proposed to be acquired by the Authority for the purposes of the scheme is required for a public purpose. (2) The declaration shall state the limits within which the land proposed to be acquired is situate, the purpose for which it is needed, its approximate area and the place where a plan of the land may be inspected. (3) The said declaration shall be conclusive evidence that the land is needed for a public purpose and the Authority shall, upon the publication of the said declaration, proceed to execute the scheme. (4) If at any time it appears to the Authority that an improvement can be made in any part of the scheme, the Authority may alter the scheme for the said purpose and shall subject to the provisions of sub-sections (5) and (6), forthwith proceed to execute the scheme as altered. (5) If the estimated cost of executing the scheme as altered exceeds, by a greater sum than five per cent the estimated cost of executing the scheme as sanctioned, the Authority shall not, without the previous sanction of the Government, proceed to execute the scheme as altered. (6) If the scheme as altered involves the acquisition otherwise than by agreement, of any land other than that specified in the schedule referred to in clause (e) of sub-section (1) of section 18, the provisions of sections 17 and 18 and of sub-section (1) of this section shall apply to the part of the scheme so altered in the same manner as if such altered part were the scheme.