What is the meaning of wrong marking of document

what are facts.           

In civil cases and even in criminal cases, wrong marking of documents can be of different kinds. But the most common wrong marking are the following two:

1. At the time of filing, the annexures/documents marked in the plaint does not match with the annexures/documents actually attached.

2. At the time of evidence, the documents are tendered. At the time of tendering, the documents are generally wrongly marked.