law: 4. Grants, loans, etc., by Central Government to Society.-
  For the purpose of enabling the Society to discharge efficiently its functions, including in particular those relating to research, literary, library, scientific and museological activities, collection of manuscripts, coins and art objects, and the publication of periodicals, books and other literature, the Central Government may, after due appropriation made by Parliament by law in this behalf, pay to the Society in each financial year such sums of money as that Government considers necessary by way of grants, loans or otherwise.