(1) Notwithstanding any judgment, decree or order of any court to the contrary, (a) no acquisition of land made or purporting to have been made under the principal Act before the commencement of the Land Acquisition (Amendment and Validation) Ordinance, 1967, and no action taken or thing done (including any order made, agreement entered into, or notification published) in connection With such acquisition shall be deemed to be invalid or ever to have become invalid merely on the ground (i) that one or more Collectors have performed the functions of Collector under the principal Act in respect of the land covered by the same notification under sub section (1) of section 4 of the principal Act; (ii)that one or more reports have been made under sub section (2) of section 5 A of the principal Act, whe 48 ther in respect of the entire land, or different parcels thereof, covered by the same notification under sub section (1) of section 4 of the principal Act; (iii) that one or more declarations have been made under section 6 of the principal Act in respect of different parcels of land covered by the same notification under sub section (1) of section 4 of the principal Act; (b) any acquisition in pursuance of any notification published under sub section (1) of section 4 of the prin cipal Act before the commencement of the Land Acquisition (Amendment and Validation) Ordinance 1967, may be made after such commencement and no such acquisition and no action taken or thing done (including any order made, agreement entered into or notification published), whether before or after such commencement, in connection with such acquisition shall be deemed to be invalid merely on the grounds referred to in clause.