the same pay, which he and other persons were drawing as Vigilance Supervisors and the period, for which they worked on such posts, shall be counted for the purposes of benefits of increments, leave and seniority etc. in their new posts, by means of office order dated 15.6.1974 (Annexure P5). In the meanwhile, the respondent-Board framed its service rules with effect from 14.6.1974 and Rule 12 of the Rules deals with the seniority of members of the service. As the respondentBoard proposed to correct the seniority list, therefore, the provisional gradation list of Clerks/Auction Recorder/Care Takers was circulated, vide letter dated 10.1.1987 and objections were invited in this respect. Then, the respondent-Board proposed to change the seniority of its employees, by virtue of impugned letter/extract of seniority list dated 11.12.1989 (Annexure P9) and they were asked to file the objections if any. In pursuance thereof, the petitioner filed the representation, which was rejected, by the Chief Administrator (respondent No.3), by way of impugned order dated 6.5.1991 (Annexure P10) and the seniority list (Annexure P9) was made absolute in this context.