Government map presumptions treat official maps as accurate, while maps prepared for litigation require proof of accuracy.

Section 83 creates a mandatory evidentiary presumption for maps or plans purporting to have been made under the authority of the Central Government or a State Government. The Court must presume both that the map or plan was so made and that it is accurate. Maps or plans prepared for the purposes of a cause do not receive that presumption of accuracy and must be proved accurate.

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