Promotion

--- Promotion --- Withdrawal of promotion --- Retrospectivity --- Vested rights --- Due process --- Scope --- Promotion granted under the rules prevailing at the relevant time cannot be withdrawn by mechanically invoking Supreme Court judgments against out-of-turn promotions; repeal or omission of rule 13.6(2) of Police Rules, 1934 has no retrospective effect to disturb vested rights --- Reversion without notice, hearing and reasoned order violates Article 10-A of the Constitution --- Service Tribunal must independently examine service record and rule-position --- Impugned judgment set aside and matter remanded.