law: Census Act, 1948
  
  7.Powers call upon certain persons to assistance:-
  The District Magistrate, or such authority as
  
  the State Government may appoint in this behalf for any local area, may, by
  
  written order which shall have effect throughout the extent of his district or
  
  of such local area, as the case may be, call upon-
  
  
  (a) all owners and occupiers of land, tenure-holders, and farmers and assignees
  
  of land revenue, or their agents,
  (b) all members of the district, municipal, panchayat 
  
  and other local authorities and officers and servants of such authorities, and
  (c) all officers and members of staff of any factory, firm or
  
  establishment, to give such assistance as shall be specified in the order
  
  towards the taking of a census of the persons who are, at the time of the
  
  taking of the census, on the lands of such owners, occupiers, tenure-holders,
  
  farmers and assignees, or in the premises of factories, firms and other
  
  establishments, or within the areas for which such local authorities are
  
  established, as the case may be, and the persons to whom an order under this
  
  section is directed shall be bound to obey it and shall, while acting in
  
  pursuance of such order, be deemed to be public servants within the meaning of
  
  the Indian Penal Code.