Section 257(1) in Rajasthan Land Revenue (Land Records) Rules, 1957
(1)It is of great importance that the rain-gauge should be inspected as the observers often allow large change to take place in the exposure of a gauge without being aware that action is necessary.The Inspecting Officer shall be Collector, Sub-Divisional Officer and Tehsildar and such other Officer as may be authorised by the Board of Revenue.