Section 46(ii) in The Manual of Departmental Orders
(ii)The rainfall at each inspection house where rain gauge is installed shall be recorded. The sub-divisional officer and the subordinate in change shall inspect the rain gauge as frequently as possible. The sub-divisional officer shall furnish a report of inspection of all rain gauges in his sub-division to the Divisional officer in April every year. All rain gauges shall be observed at 8 a.m. and recorded in the register against the date on which they are observed.
