Turning to the Act in question, it was brought on the statute book in 1951, as the preamble shows, in order "to provide for the public purposes of the improvement of agriculture and financial condition of agriculturists by abolition and acquisition, of the rights of proprietors in villages, muhala, chaks or blocks settled on zamindari system which is only a. system of,, keeping an intermediary between the State and the tenants injurious to the betterment of agriculture as well as the agriculturists in Madhya Bharat and for other matters connected therewith," "Proprietor" as defined in section 2(a) means, "as respects a village, muhal or land settled on zamindari system, a person owning whether in trust or for his own benefit such village, muhal or land and includes (1) a Malguzar as defined in sub clause (12) of section 2 of Qanoon Mal, Gwalior State, Samvat 1983; and (2) as respects a chak or block a chakdar or blockdar whose lease granted to him by the Government under any Act, Rule or Circular relating to chaks and blocks, includes also, amongst its other conditions, a condition that he shall acquire the proprietary rights in respect of that chak or block when the conditions of the lease are fulfilled; (3) the heir and successors in interest of a proprietor; Section 2(c) defines "Khud kasht" to mean "land cultivated by the Zamindar himself or through employees or hired laborers and includes sir land." Sections 3 and 4 which occur in Chapter II dealing "vesting of proprietary rights in the State" provides as under : "3.