The case involves a dispute over promotion and parity between two cadres, Draughtsman Grade-I, and Supervisors, in the Tirumala Tirupathi Devasthanams (TTD). The appellant, a Draughtsman Grade-I, claimed entitlement to ... promotion as Assistant Executive Engineer from the date of acquiring graduate qualification (1983), similar to Supervisors who received benefits under Government Orders. The High Court's Single Judge and Division Bench delivered conflicting verdicts, leading to an appeal in the Supreme Court. The case revolves around the interpretation of Government Orders, service rules, and the principle of parity.