" There are two preambles to the Act which recite: " Whereas in pursuance of the Directive Principles of State policy laid down by the Constitution of India it is incumbent on the State to secure economic justice for all and to that end to secure the ownership and control of all material resources of the community so that they may best subserve the common good, and to prevent the concentration of wealth and means of production to the common detriment; And whereas in order to enable the State to discharge the above, obligation it is expedient to provide for the abolition of all the rights, title and 846 interest in land of intermediaries by whatever name known, including the mortgagees and lessees of such interest, between the raiyat and the State of Orissa, for vesting in the said State of the said rights, title and interest and to make provision for other matters connected therewith;" The material parts of the 'definitions of "Estate" and "Intermediaries" set forth in section 2 are as follows: (g) "estate. . in relation to merged territories means any collection of Mahals or villages held by the same intermediary which has been or is liable to be assessed as one unit to land revenue whether such land revenue be payable or has been released or compounded for or redeemed in whole or in part.