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Nagalingam Shanmugathasan

Sri Lankan politician (1920–1993)

Correspondence, annotated notebooks and portrait silhouettes prepared for research
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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionApr 26, 2026
Entity authorityQ3535792 ↗
Source-derived summary

Nagalingam Shanmugathasan (Tamil: நாகலிங்கம் சண்முகதாசன், 1920 – 8 February 1993) was a trade unionist and Maoist revolutionary leader in Sri Lanka. He was the General Secretary of the Ceylon Communist Party (Maoist)

Early life and family

Shanmugathasan hailed from a family of modest means in the town of Manipay in Jaffna District. He began studying history at the University College Colombo in 1938, where he first came into contact with communist ideas and met supporters of the Communist Party of Great Britain who had returned from studying at Cambridge University. In 1939 he and two fellow students were suspended, but soon reinstated, from the university for distributing anti-imperialist flyers after the outbreak of World War II. Shanmugathasan gained notoriety among the students after this action and in 1940 won in the student election to become General Secretary of the University Union Society. The next year he was elected President of the Society. In the meantime, he was organizing a group of Communists among the students that opposed both British imperialism and the Trotskyists of the Lanka Sama Samaja Party.

After graduating from the University of Ceylon in 1943, Shanmugathasan joined the trade union movement, and became a full-time activist of the Ceylon Communist Party. He became the head of the Ceylon Trade Union Federation and led several strikes, including the general strike of 1947, the Hartal (general strike) of 1953, and a transport strike in 1955.

Shanmugathasan married with Parameswari, the widow wife of veteran Communist leader Hon. Pon Kandiah.

Editorial summary

Begin with the source’s own compact description: “Nagalingam Shanmugathasan” is sri Lankan politician (1920–1993). The dossier treats that line as a proposition to test through Nagalingam, Shanmugathasan and Lankan, not as a finished interpretation.

Editorial reviewA useful biographical orientation record, particularly for establishing names, roles and a first chronology. The current lead gives the account dated anchors—1920, 1993, 1938, 1939—that can be checked directly. The linked authority record independently contributes the date 1920-01-01. For this dossier, Nagalingam, Shanmugathasan and Lankan is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “sri Lankan politician (1920–1993)” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Apr 26, 2026. The linked authority identifier is Q3535792. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1920, 1993, 1938 and 1939.

Critical limits

A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Nagalingam Shanmugathasan”, its source revision and the description used here.
  2. Expand the search: follow Nagalingam Shanmugathasan primary sources, Nagalingam Shanmugathasan archive and Nagalingam research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Nagalingam Shanmugathasan”?
  2. Which claims depend on a single source or contested interpretation?
  3. Which primary records establish identity, chronology and institutional ties?
Subject index

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Source & attribution

This entry incorporates text from “Nagalingam Shanmugathasan” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.