Section 1253(a) in Police Regulations, Bengal , 1943
(a)When a Superintendent requires a building to be constructed by the Communications and Works Department, or requires additions or alterations to buildings already borne on the books of that department, which additions or alterations are likely to cost more than Rs. 10,000, he shall submit a report in B. P. Form No. 238 to the Inspector-General through the District Magistrate and the Deputy Inspector-General of the Range.