Section 1220(i) in Police Regulations, Bengal , 1943
(i)Officers of and below the rank of Sub-Inspector may draw daily allowance at the ordinary rates for all road journeys of more than 15 miles from their headquarters provided that in the case of officers attached to a police-station, the place to which they travel is beyond the limits of the police-station. The fixed conveyance or horse allowance drawn by Sub-Inspectors will not be affected by the grant of daily allowance.