law: National Food Security Act, 2013 
  Chapter IV
  Identification of Eligible Households
  9. Coverage of population under Targeted Public Distribution
  
  System.
  The percentage coverage under the Targeted Public Distribution
  
  System in rural and urban areas for each State shall, subject to sub-section (2)
  
  of section 3, be determined by the Central Government and the total number of
  
  persons to be covered in such rural and urban areas of the State shall be
  
  calculated on the basis of the population estimates as per the census of which
  
  the relevant figures have been published.