inter se seniority definition

inter se seniority means, except as otherwise provided in any rules, the seniority inter-se of members of the more than one cadre(s) or service(s) which is determined by the length of continuous service counted toward seniority;
inter se seniority means seniority of persons in accordance with the ranks obtained by them in selection.
inter se seniority means, except as otherwise provided in any rules, the seniority inter-se