
The Madras High Court has delivered a decisive affirmation of the principle that service regulations cannot be amended retrospectively to extinguish accrued promotional rights. This judgment reinforces the constitutional safeguard against arbitrary denial of career advancement in public employment, particularly where statutory entitlements have been established over time.
Background & Facts
The Dispute
The petitioners, employed as Surveyors and Junior Draughting Officers with the Tamil Nadu Housing Board (TNHB), sought inclusion in the provisional seniority list for promotion to the post of Assistant Engineer/Junior Engineer. Prior to November 2024, the Tamil Nadu Housing Board Service Regulations permitted promotion to Assistant Engineer from "other categories" of service, which explicitly included Surveyors and Junior Draughting Officers, provided they held an engineering degree. The petitioners, many of whom possessed the requisite qualifications, had been consistently considered for promotion alongside Technical Assistants until 2022.
Procedural History
- 2022: TNHB issued a provisional seniority list including Surveyors, Junior Draughting Officers, and Technical Assistants for promotion to Assistant Engineer.
- January 2023: The Board withdrew the 2022 list without explanation and issued a new list excluding Surveyors and Junior Draughting Officers.
- November 2024: G.O. (Ms.) No.204 amended Rule 9(a) to restrict promotion eligibility exclusively to Technical Assistants, effective retrospectively to the 2022-2023 panel.
- December 2024: Consequential memoranda were issued excluding petitioners from the 2022-2023 promotion panel based on the amended rule.
- 2025: Multiple writ petitions were filed under Article 226 challenging the exclusion and retrospective application of the amendment.
Relief Sought
The petitioners sought quashing of the impugned Government Order and memoranda, and directed the Board to include them in the 2022-2023 promotion panel with retrospective effect, including all monetary and consequential benefits.
The Legal Issue
The central question was whether an amendment to service regulations that excludes a previously eligible category from promotion can be applied retrospectively to deny rights that had already accrued under the prior rules.
Arguments Presented
For the Petitioner
The petitioners relied on the principle that service rules operate as contractual terms of employment, and any amendment affecting accrued rights must be prospective. They cited Director General of Foreign Trade v. Kanak Exports to argue that subordinate legislation cannot have retrospective effect unless expressly authorized. They emphasized that the Regulation, as it stood on the date of panel preparation (20.02.2023), permitted inclusion of "other categories," and their eligibility was not contingent on future amendments. They also referenced the Court’s earlier decision in W.P. Nos.6224 & 6750 of 2023, which had affirmed their right to be considered.
For the Respondent
The State contended that the amendment was necessary to streamline promotional avenues and prevent dilution of opportunities for Technical Assistants, who were the traditional feeder cadre. It argued that the earlier inclusion of Surveyors was merely an "enabling provision" for contingencies and not a vested right. The respondents further claimed that Surveyors had a separate career path to Head Surveyor, and granting them access to Assistant Engineer posts would disrupt organizational hierarchy and impact survey operations.
The Court's Analysis
The Court conducted a rigorous analysis of the statutory framework and precedent, concluding that the amendment could not operate retrospectively. It emphasized that the right to promotion, once accrued under existing rules, becomes a protected entitlement under Article 14 and Article 16 of the Constitution. The Court held that the phrase "other categories" in Rule 9 was unambiguous and inclusive, and the Board could not unilaterally narrow its scope without formal amendment.
"The respondents cannot bypass the Rule and take a stand contrary to the Rule, without there being any amendment brought in the Rule."
The Court distinguished the respondents’ argument that Surveyors had a separate promotional track, noting that Head Surveyor was a terminal position with no further advancement, whereas Assistant Engineer offered a clear upward hierarchy. The Court found the exclusion of Surveyors and Junior Draughting Officers from the 2022-2023 panel to be arbitrary, especially since the amendment was enacted only after the panel was improperly prepared. The Court reaffirmed that retrospective application of service rules that impair accrued rights is impermissible unless the rule-making authority is expressly empowered to do so - a condition absent here.
The Court also rejected the notion that prior inclusion of Surveyors was a "gratuitous benefit," holding instead that it was a statutory entitlement conferred by the Regulation itself. The failure to include petitioners despite their eligibility constituted a violation of natural justice and equal protection.
The Verdict
The petitioners won. The Court held that amendments to service regulations cannot be applied retrospectively to deny promotion rights that accrued under the prior rules. It quashed the impugned orders and directed the Tamil Nadu Housing Board to redraw the 2022-2023 promotion panel to include petitioners and similarly placed officers, with retrospective effect and all monetary benefits.
What This Means For Similar Cases
Retrospective Amendments to Service Rules Are Invalid
- Practitioners must challenge any service rule amendment that seeks to nullify promotion eligibility retroactively.
- The burden shifts to the employer to prove express statutory authority for retrospective operation - mere administrative convenience is insufficient.
- Accrued rights under existing rules are constitutionally protected under Articles 14 and 16.
Eligibility Is Determined by Rules in Force on the Crucial Date
- Promotion eligibility must be assessed based on the rules applicable on the date the selection panel was prepared, not the date of the amendment.
- Even if a rule is later amended, candidates who met the criteria on the relevant date retain their entitlement.
- Employers cannot selectively exclude categories after the fact by invoking new rules.
Separate Career Tracks Do Not Nullify Statutory Entitlements
- The existence of an alternative promotional path (e.g., Head Surveyor) does not extinguish a statutory right to another path (e.g., Assistant Engineer).
- Courts will not accept administrative justifications that contradict clear regulatory language.
- Where rules permit multiple feeder categories, exclusion of one without amendment is arbitrary and void.






