(2) Notwithstanding any judgment, decree or order of any court, all assessments or orders made, actions or proceedings taken, directions issued, jurisdictions exercised or tax levied or collected by any officer or authority purporting to act under the provi sions of sub section (1) of Section 7, as it stood prior to its amendment by Section 7 of U.P. Act XIX of 1956, shall be deemed to be good and valid in law as if such assessments, orders, actions, proceedings, directions, jurisdictions and tax have been duly made, taken, issued, exercised, levied or collected, as the case may be, under or in accordance with the said provisions of this Act as amend ed by the Uttar Pradesh Bikri Kar (Sanshodhan) Adhiniyam, 1962 and as if the amendment so made had been in force on all material dates.