Tempered document

Dear Sir expert                                                                29/02/2016

In one of my family matter case the opponent has filed a document after inserting some number differ from the original documents in order to take  advantage of the  blank space and to defraud the court.

Please guide this is not fabricating the document and if it is so how to take objection after producing the original and under which section.

How to convince the judge to get the favour and demolish the stand of the opponent

regards

Ramesh