Section 54(1) in Kerala Survey and Boundaries Rules, 1964
(1)In the case of theodolite surveys the recorded angle as per previous survey shall be corrected, if the angle observed at the same station differs by more then three minutes.The limit of tolerance allowable in linear measurements of a theodolite traverse survey shall be as follows: -For distance for 100 links /20metres or below One Links/2Decimetres For distance above 100 links/20metres up to and including 500 links /100metres , One link/2decimetrs.For distance over 500 links/100 metres One link/2 decimetres fir every additional 250 links/50 metres
