Section 331(b) in Rajasthan Land Revenue (Land Records) Rules, 1957
(b)The Collector should also send to the Board of Revenue for transmission in manuscript to the Director General of Observatories, at the end of every calendar month, so as to reach him not later than the 5th of the following month, the undermentioned Information pertaining to his district in the form prescribed below:-(i)Total rainfall for the month, for each rain-gauge station.(ii)Total number of rainy days for the month (that is to say the number of days for each of which the rain fall was not below ten cents).(iii)Heaviest rainfall during the month.(iv)Statement of rainfall of ten inches or more in one day with amounts of rainfall on the preceding and succeeding days with dates.(v)In case there is no rainfall during any month 'Nil' should be reported.