( 1 ) THIS is an application under Article 226 of the Constitution, in which the petitioners claim a writ in the nature of Mandamus directing the respondents Nos. 1, 2 and 12 to forbear from Riving effect to or withdraw or cancel certain orders which are annexures C and H to the petition Annexure C is a letter from K C Roy. Joint Secretary to the Government of West Bengal, Judicial Department, to the Chief Judge. City Civil and Sessions Courts, Calcutta dated January 6, 1965 In that letter it was stated that he-fore the introduction of the revised pay scales from April 1. 1961. the scale of pay of lower division clerks in the district courts was Rs- 55-130 and the scale of pay of the same clerks in the Citv Civil and Sessions Courts was Rs 75-150 It was further stated that lower division clerks of the district court! who were appointed as lower division clerks in the City Civil and Sessions Courts in higher scales, were deemed as appointed on promotion to the higher scale And for that reason it was stated in G. O No 5337-J dated July 22, 1960. that the seniority of the lower division clerks in the City Civil and Sessions Courts would count from the date of their ap