S.RAMANATHAN vs UNION OF INDIA .

The Supreme Court addressed the issue of whether State Police Service Officers are entitled to a mandamus for a triennial review of their promotion to the Indian Police Service under the Indian Police Service (Recruitment) Rules, 1954 and the Indian Police Service (Cadre) Rules, 1954. The Court found that while the Competent Authority failed to conduct the required review, the appellants did not demonstrate any prejudice resulting from this inaction, thus denying the issuance of mandamus. The Court upheld the tribunal's decision, emphasizing the necessity of proving prejudice for mandamus to be granted.