Gujarat High Court Civil Manual (subordinate court practice), 1960
If a document included in the list is referred to in the proceedings before it is tendered in evidence and formally proved, it should be immediately marked for identification. When it is tendered in evidence, it should be detached from the list. If rejected, it should be endorsed as prescribed by Order XIII, rule 6, Civil Procedure Code, and returned. If admitted, the endorsement referred to in the above rule should be completed and signed by the Judge (Order XIII, rule 4, Civil Procedure Code) and the document should be assigned the appropriate exhibit number and filed in the record and all references to it in the depositions and Judgment should bear that number. Every document should be further marked with the letter 'P' or 'D', according as it is tendered by the plaintiff or the defendant. The number assigned to each document should be endorsed on the list of documents mentioned above.