( 1 ) THIS application under Article 226 of the Constitution is directed against an order of reversion from the post of Assistant Commissioner of Police to that of Inspector of Police, made by the Government of West Bengal on 9-7-1954 and later notified in the Calcutta Police Gazette on 19-7-1954. The petitioner's Case, in Short is that he entered into service as a Sub-Inspector in the Calcutta Police Force on 10-71-1955 and promoted to the rank of Inspector of Police on (sic) 939 to which rank he was confirmed on 3-5-1943. Having secured numerous rewards on account of a successful service career, the petitioner was selected by a Selection Board to officiate as Assistant Commissioner of Police and placed on the list of Inspectors fit for promotion to the rank of Assistant Commissioner and was eventually appointed Assistant Commissioner of Police on 7-5-1948. The petitioner passed the Departmental Examination in higher standard and the result was declared by the Public Service Commission in May 1949 and published in the Calcutta Police Gazette, on 22-6-1949. On 8-2-52 the petitioner's name was included by a Selection Board in the list of officers fit for confirmat