DAE Project Units as “Adjuncts” of the Central Government: Heavy Water Plant Employees Excluded from the Payment of Gratuity Act by Section 2(e)

1. Introduction

Case: N. Manoharan v. The Administrative Officer (2026 INSC 143), Supreme Court of India, decided on 11-02-2026.

The appeals were filed by retired employees of the Heavy Water Plant, Tuticorin (“HWP”), functioning under the Department of Atomic Energy, Government of India (“DAE”). The core dispute arose when retirees—paid retirement benefits (including gratuity) under the CCS (Pension) Rules, 1972—claimed a higher gratuity entitlement under the Payment of Gratuity Act, 1972 (“PG Act”). The Controlling Authority and the Appellate Authority under the PG Act had accepted the claim on the basis that HWP constituted an “industry” and that the retirees were “employees” within the PG Act framework.

The Madras High Court reversed those authorities, holding that HWP personnel were excluded by the definition of “employee” in Section 2(e) of the PG Act, as they held posts under the Central Government and were governed by rules providing for gratuity (CCS Pension Rules). The Supreme Court was thus called upon to decide a narrow but consequential issue: whether employees of HWP are covered by the PG Act.

2. Summary of the Judgment

The Supreme Court dismissed the appeals and upheld the High Court’s conclusion that HWP employees are not covered by the PG Act because they fall within the exclusionary limb of Section 2(e). The Court treated the question as turning on jurisdictional facts—particularly the legal character of HWP as an “adjunct/ancillary” unit of DAE rather than a separate corporate entity (PSU/government company). Consequently, the Court held that Sections 5 (exemption) and 14 (overriding effect) of the PG Act do not arise for consideration once the employee is excluded at the definitional threshold.

3. Analysis

3.1 Precedents Cited

(a) Arun Kumar v. Union of India (2 007) 1 SCC 732

The Court relied on Arun Kumar v. Union of India to anchor the concept of a jurisdictional fact: a foundational fact that must exist before a tribunal/authority can assume jurisdiction. If such a fact is wrongly assumed, the resulting order is vulnerable to judicial review.

Influence on outcome: The Court reframed the controversy from “what benefits are better” to “does the PG Act forum have jurisdiction at all?”. If HWP retirees are excluded by Section 2(e), the Controlling Authority under the PG Act would lack jurisdiction to compute/award differential gratuity.

(b) Municipal Corporation of Delhi v. Dharam Prakash Sharma (1 998) 7 SCC 22

The appellants invoked Municipal Corporation of Delhi v. Dharam Prakash Sharma to argue that adoption of CCS rules does not displace statutory gratuity entitlements. The High Court had distinguished it, and the Supreme Court agreed.

Influence on outcome: The Supreme Court held that MCD could not control the present case because MCD is a distinct corporate/statutory entity and its employees were “undeniably” employees of the Corporation; by contrast, HWP was treated as an annex/adjunct of DAE (Central Government), attracting the specific statutory exclusion in Section 2(e) for persons holding posts under the Central Government and governed by gratuity-providing rules.

The Court also reiterated a classic constraint on precedent: a decision is an authority for what it decides, not what can be logically deduced from it—thereby limiting analogical extension from MCD to structurally different employers.

(c) Mahalakshmi Oil Mills v. State of A.P. (1989) 1 SCC 164

(d) P. Kasilingam And Others v. P.S.G College Of Technology And Others (1995) supp SCC 2 348

These authorities were cited on statutory interpretation of definitions using the drafting signals “means” and associated inclusion/exclusion language. The Court applied this interpretive learning to Section 2(e) of the PG Act.

Influence on outcome: By emphasizing that “means” can denote an exhaustive definition and that “does not include” is plainly exclusionary, the Court strengthened the conclusion that the Section 2(e) exclusion operates at the threshold—preventing the PG Act from applying regardless of other arguments (industry/establishment, comparative benefits, or overriding provisions).


3.2 Legal Reasoning

(i) The decisive gateway: Section 2(e) “employee”

The Court treated Section 2(e) as a gatekeeping provision. Even if an establishment is otherwise covered, a claimant must first be an “employee” within the statutory meaning. The second limb of Section 2(e) begins with “but does not include” and excludes persons who:

  • hold a post under the Central Government or a State Government, and
  • are governed by any other Act or by any rules providing for payment of gratuity.

On the Court’s reading, this exclusion is determinative once its conditions are satisfied; it is not a “mere exception” to be overcome by general provisions like Section 14.

(ii) Jurisdictional fact found against the retirees: HWP is not a separate legal employer

The Court placed primary weight on the institutional and legal character of HWP as constituted and administered under the DAE framework, noting:

  • The Atomic Energy Act, 1962 (“AE Act”) empowers the Central Government to act directly or through an authority/corporation/government company; this underscores that the Government may choose differing institutional forms for atomic-energy activities.
  • HWP was constituted/managed through a board mechanism (the Heavy Water Projects Board) pursuant to an Office Memorandum (01.05.1969), to manage DAE projects for heavy water production.
  • The retirees admitted HWP is not incorporated under the Companies Act, is not recognized as a PSU, and is not a government company. The Court highlighted the absence of classic company attributes (separate legal personality, perpetual succession, etc.).

From these “jurisdictional facts,” the Court concluded that HWP is an adjunct/ancillary unit of the DAE rather than a distinct employer. Therefore, the retirees fall within the Section 2(e) exclusion applicable to Central Government posts governed by gratuity-providing rules (CCS Pension Rules).

(iii) Why Sections 5 and 14 were held irrelevant

The appellants argued that absent an exemption notification under Section 5, PG Act coverage should apply, and that Section 14 (overriding effect) should prevail over CCS rules. The Court rejected both as conceptually downstream:

  • Section 5 (exemption) presupposes the Act applies; it does not create coverage where the claimant is excluded from the definition of “employee.”
  • Section 14 (overriding effect) can operate only once a person is within the Act’s ambit; it cannot override an express definitional exclusion in Section 2(e).

(iv) Conscious narrowing: service rules and appointment orders were not central to “jurisdictional fact”

Notably, while the High Court emphasized appointment orders and CCS coverage, the Supreme Court stated it was deciding the jurisdictional fact chiefly on constitution/establishment/continuation of HWP as part of DAE, and “by choice” did not rest its conclusion on appointment orders/circulars. This signals a structural approach: who the employer is in law outweighs how internal service conditions are administered.


3.3 Impact

  • Threshold-exclusion approach strengthened: The judgment reinforces that where Parliament has excluded a class at the definitional stage (Section 2(e)), adjudicators must stop there; benefit-comparison arguments and overriding clauses cannot be used to re-enter the statute.
  • Institutional form matters: The Court’s emphasis on whether an entity is incorporated/PSU/government company (versus a departmental project/annex) will influence future disputes involving boards, projects, and attached offices claiming distinctness to access labour-welfare statutes.
  • Atomic energy and similarly structured sectors: Units operating under ministries/departments via project boards may find this ruling cited to argue departmental character, especially when employees are treated as holding civil posts and are governed by service rules providing gratuity.
  • Limits of analogical reliance on “adoption of CCS rules” cases: The Court’s treatment of MCD narrows its utility to situations where the employer is a separate statutory/corporate entity and the employees are not excluded by a specific definitional bar.

4. Complex Concepts Simplified

  • Payment of Gratuity Act, 1972 (PG Act): A welfare statute requiring covered employers to pay gratuity to eligible employees on retirement/termination, subject to statutory conditions and ceilings.
  • Section 2(e) “employee” (exclusionary definition): Even if a workplace looks like an “establishment,” a person may still be outside the Act if they fall in the excluded category—here, Central/State Government post-holders governed by gratuity rules.
  • CCS (Pension) Rules, 1972: Service rules for Central Government servants that include provisions for gratuity; where applicable and where the PG Act excludes the person, CCS governs.
  • Jurisdictional fact: A fact that must exist before an authority can decide a case (e.g., whether the claimant is an “employee” under the PG Act). If the fact is absent, the authority has no power to grant relief under that statute.
  • Section 14 (overriding effect): A clause that makes the PG Act prevail over inconsistent instruments—but only for those who are within the Act. It cannot override an express exclusion that prevents entry into the Act.
  • Section 5 (exemption): A mechanism to exempt establishments from the Act under specified conditions; it is not required where the Act never applies due to a definitional exclusion.

5. Conclusion

N. Manoharan v. The Administrative Officer settles that employees of the Heavy Water Plant, Tuticorin—treated by the Court as an adjunct/ancillary unit of the DAE rather than a separate corporate employer—are excluded from the PG Act by the Section 2(e) definition. The ruling is significant for its method: it elevates jurisdictional fact-finding about the employer’s legal character and treats definitional exclusions as decisive, thereby rendering Sections 5 and 14 inapplicable. Going forward, litigants and authorities must first resolve “who the employer is in law” and “whether the claimant is an ‘employee’ under Section 2(e)” before engaging with questions of industry status, comparative benefit levels, or overriding clauses.