Section 10(1)(d) in The Orissa Subordinate Fisheries Service Rules, 1994
(d)(i)Promotion to the post of Supervisors shall be made from amongst the Demonstrators on the basis of the Selection made by the Departmental Promotion Committee constituted under Sub-rule (2) of Rule 11.(ii)Demonstrator of Fisheries who has rendered a minimum of five years of continuous service as such on the 1st day of January of the year in which the D.P.C. meets shall be considered for promotion to the post of Supervisor.