Director, C.B.I. & Anr vs D.P. Singh

The Supreme Court upheld the Delhi High Court's decision to grant seniority to D.P. Singh as Deputy Superintendent of Police (Dy.S.P.) from November 24, 1977, instead of June 29, 1987. The Court emphasized that Singh's appointment on an ad-hoc basis in 1977 should be recognized for seniority purposes, despite his formal absorption occurring later. The ruling clarified the interpretation of seniority in the context of service rules and the implications of long-term deputation, affirming the High Court's order as just and equitable under the relevant service regulations.