(hereinafter referred to as Wamanrao 's case) and other allied petitions have challenged the constitutional validity of the Maharashtra Agricultural Lands (Ceiling on Holdings) Act 1961 (herein after referred to as the principal Act) as amended by the Maharashtra Agricultural Lands (Lowering of Ceiling on Holdings and (Amendment Act 1972 (hereinafter referred to as Act 21 of 1975) and the Maharashtra Agricultural Lands (Lowering of Ceiling on Holdings) and (Amendment) Act 1975 (hereinafter referred to as Act 47 of 1975) and the Maharashtra Agricultural Lands (Ceiling on Holdings) Amendment Act 1975 (hereinafter referred to as Act 2 of 1976) on the ground that the amended provisions of the Act are violative of Articles 14, 19(1)(f), 31 and 31A of the Constitution.