law: Code of Civil Procedure, 1908
  30. Power to order discovery and the like. Subject to such
  
  conditions and limitations as may be prescribed, the Court may, at any time,
  
  either of its own motion or on the application of any party,-
  (a) make such orders as may be necessary or reasonable in all
  
  matters relating to the delivery and answering of interrogatories, the
  
  admission of documents and facts, and the discovery, inspection, production,
  
  impounding and return of documents or other material objects producible as
  
  evidence;
  (b) issue summonses to persons whose attendance is required
  
  either to give evidence or to produce documents or such other objects as
  
  aforesaid;
  (c) order any fact to be proved by affidavit.