Seniority by substantive appointment to cadre governs service rank, but long-delayed challenges may fail on laches.

Senior ity under the service rules was linked to substantive appointment to the cadre, not to confirmation in a permanent post alone. Because the cadre comprised both permanent and temporary posts and the rules treated a substantively appointed Government servant as a member of the service, appointment to a temporary post in a regular substantive capacity counted for seniority from the date of appointment. However, even where the seniority rule favoured the challenger on merits, writ relief could be refused if the seniority list was attacked after inordinate and unexplained delay causing prejudice and unsettling settled rights. The appellate outcome left the seniority determination undisturbed on the ground of laches.

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Issues: (i) Whether seniority under the service rules was to be determined from the date of substantive appointment to the cadre, whether against a permanent or temporary post, or only from the date of confirmation in a permanent post; (ii) Whether relief could be denied on the ground of inordinate delay and laches in challenging the seniority list.

Issue (i): Whether seniority under the service rules was to be determined from the date of substantive appointment to the cadre, whether against a permanent or temporary post, or only from the date of confirmation in a permanent post.

Analysis: The governing rules defined a member of the service as a Government servant appointed in a substantive capacity, and the cadre was made to consist of both permanent and temporary posts. Seniority was expressly tied to the date of the order of appointment to the service. On that scheme, substantive appointment did not depend on appointment to a permanent post alone, nor on the formality of confirmation in the Gazette. The Court applied the principle that once the relevant requirements for regular appointment are satisfied and the officer is appointed substantively in the cadre, the officer becomes a member of the service for seniority purposes.

Conclusion: Seniority is to be reckoned from the date of substantive appointment to the service, whether to a permanent or temporary post, and not merely from the date of confirmation.

Issue (ii): Whether relief could be denied on the ground of inordinate delay and laches in challenging the seniority list.

Analysis: Although the seniority rule favoured the respondents on merits, the challenge was brought after a very long interval from the original fixation of seniority. The Court treated the delay as unreasonable, noted the intervening accrual of rights and the administrative consequences of unsettling long-settled seniority, and applied the settled principle that writ relief may be refused where there is unexplained and inordinate delay coupled with prejudice to others.

Conclusion: Relief was refused on the ground of laches and delay.

Final Conclusion: The appeal succeeded, the High Court's decision was set aside, and the challenged seniority determination was left undisturbed because equitable relief was barred by delay, even though the governing rule on seniority was stated in principle.

Ratio Decidendi: Where the service rules treat substantive appointment to the cadre as the basis of membership and seniority, appointment to a temporary post in a regular substantive capacity counts for seniority; however, writ relief against a long-settled seniority list may still be declined on the ground of inordinate laches.

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