Gujarat Land Revenue Code, 1879
It shall be lawful for the '[ '[State] Government] to direct at any time, a fresh '['] survey or any operation subsidiary thereto '[* *]: [Provided that when a general classification of the soil of any area has been made a second time, or when any original classification '[of the soil] of any area has been approved by the '[State] Government] as final no such classification shall be again made with a view to the revision of the assessment of such area.]