Section 743(b) in Police Regulations, Bengal , 1943
(b)Method of recruitment. - Vacancies shall be filled either (i) by promotion from the rank of constable or (ii) by direct recruitment.(i)Promotion of constables. - Nominations shall be made by the Superintendent to the Range Deputy Inspector-General once a year and the latter officer shall personally interview the men on a suitable opportunity. Thereafter, an approved list of constables, fit for permanent promotion, shall the prepared for each district by the Deputy Inspector-General in conference with the Superintendent concerned and appointments shall be made from it on the occurrence of a vacancy in the order in which the names are arranged. In the case of constables of the Intelligence Branch and the Criminal Investigation Department, the Deputy Inspector-General in consultation with one m more Special Superintendents shall prepare an approved list of constables fit for permanent promotion, ordinarily, in accordance with paragraphs (ix) and (x) of Appendix XLVI and appointments shall be made from the list in the order in which the names are arranged.
