Beginning with the Uttar Pradesh Zamindari Abolition and Land Reforms Act, 1950 - assented in January 1951 and given effect by a vesting order of 1 July 1952 - the new Indian states dismantled the intermediary landlord tenures inherited from the Permanent Settlement. Comparable acts followed in Bihar, Madras, Bombay, Hyderabad and elsewhere, extinguishing the rights of zamindars in favour of the state and the tiller, against compensation. When the statutes were challenged as violating property rights, Parliament passed the Constitution (First Amendment) Act, 1951, inserting Article 31B and the Ninth Schedule to immunise them from fundamental-rights review. Ceiling laws on agricultural holdings followed through the 1950s and 1960s.
Abolition installed the Indian state, rather than a landlord class, as the ultimate manager of land - the legal foundation on which every later urban land instrument, from ceiling and acquisition to land pooling, was built. The Ninth Schedule device it created was reused to shield the Urban Land (Ceiling and Regulation) Act 1976 and other planning laws from the courts.
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