Discovery and production of documents governed by civil procedure rules; summons must specify relevance and use prescribed form. Discovery and production and return of documents are governed by the Code of Civil Procedure unless otherwise provided. An application for a summons to produce must be on plain paper stating the document sought, its relevancy, and whether a certified copy was sought from the proper officer and the result. A summons for documents in the custody of a public officer must include particulars specified in GSTAT FORM-06 and be addressed to the concerned Head of the Department or other authority specified by the Tribunal.