law: The Regional Rural Banks Act, 1976
  5. Authorised capital
  The authorised capital of each Regional Rural
  
  Bank shall be one crore of rupees, divided into one lakh of fully paid-up
  
  shares of one hundred rupees each:
  Provided that the Central Government may,
  
  after consultation with the Reserve Bank and the Sponsor Bank, increase or
  
  reduce such authorised capital; so, however, that the authorised capital shall
  
  not be reduced below twenty-five lakhs of rupees, and the shares shall be, in
  
  all cases, fully paid-up shares of one hundred rupees each.