Section 1183(a) in Police Regulations, Bengal , 1943
(a)Inspectors (including temporary and officiating of Inspectors) shall draw their pay in the form prescribed for gazetted officers but for purposes of audit they will be treated as non-gazetted officers. They shall prepare their bills in duplicate and submit the duplicate copy for record in the Superintendent's office and as soon as the bills are cashed they shall also send bill extracts of allowances, if any.