Promissory estoppel cannot enforce an unlawful promotion promise where recruitment rules provide only direct recruitment.

Promissory estoppel requires a clear promise, reliance, and detriment, but it cannot compel a public authority to act contrary to law, beyond its power, or against the governing recruitment scheme. A claimed assurance to promote Demonstrators to Lecturers was not enforceable because no statutory rule or executive instruction provided for such promotion, direct recruitment remained the prescribed mode of appointment, and the pleadings did not establish a definite promise or proved change of position in reliance on it. The alleged representation therefore failed to attract promissory estoppel.

---

---

Issues: Whether a promise allegedly made by the Government to promote Demonstrators to Lecturers could be enforced by invoking promissory estoppel when no statutory rule or executive instruction provided for such promotion.

Analysis: Promissory estoppel is an equitable doctrine that operates where a clear promise induces the promisee to alter position to his detriment and injustice would result if the promisor is allowed to resile. The doctrine cannot be used to compel performance of a representation that is contrary to law, outside the authority of the public authority making it, or in conflict with the existing recruitment scheme. Here, promotion of Demonstrators to Lecturers was not provided by any statutory rule or executive instruction, the existing mode of recruitment for Lecturers remained direct recruitment, and the pleadings did not establish a definite assurance or any proved alteration of position in reliance upon it.

Conclusion: The alleged promise was not enforceable by promissory estoppel and the appeal failed.

---