law: Banking Regulation Act, 1949
  25. Assets in India
  (1) The assets in India of every banking company
  
  at the close of business on the last Friday of every quarter or, if that Friday
  
  is a public holiday under the Negotiable Instruments Act, 1881 (26 of 1881), at
  
  the close of the business on the preceding working day, shall not be less than
  
  seventy-five per cent of its demand and time liabilities in India.
  (2) Every banking company shall, within one
  
  month from the end of every quarter, submit to the Reserve Bank a return in the
  
  prescribed form and manner of the assets and liabilities referred to in sub-section
  
  (1) as at the close of business on the last Friday of the previous quarter, or,
  
  if that Friday is a public holiday under the Negotiable Instruments Act, 1881
  
  (26 of 1881), at the close of business on the preceding working day:]
  PROVIDED that every Regional Rural Bank shall
  
  also furnish a copy of the said return to the National Bank.]
  (3) For the purposes of this section:-
  (a)  "assets
  
  in India" shall be deemed to include export bills drawn in and import
  
  bills drawn on and payable in, India and expressed in such currencies as the
  
  Reserve Bank may from time to time approve in this behalf and also such
  
  securities as the Reserve Bank may approve in this behalf notwithstanding all
  
  or any of the said bills or securities are held outside India;
  (b) "liabilities
  
  in  India " shall not
  
  include the paid-up capital or the reserves or any credit balance in the profit
  
  and loss account of the banking company;,
  (C)
  
  "quarter" means the period of three months ending on the last day of
  
  March, June, September or December.