Save as is otherwise expressly provided in any law, no instrument which is required to be stamped under this Act shall be made available for any purpose whatever unless it is duly stamped, and in particular shall not be produced or given in evidence or be made available in any court of law, except—

Provided that the court before which any such instrument is tendered may permit or direct that, subject to the payment of any interest, penalty and additional duty incurred in respect of that instrument under sections 9, 9A and 9B, the instrument be stamped in accordance with the provisions of this Act and upon the instrument being duly stamped may admit it in evidence.