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Haribabu Pasupathy

Haribabu Pasupathy

The Submerged South: Reclaiming Tamilakam’s Forgotten Shores

5 min readJul 3, 2025

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“The sea swallowed their cities, but not their memory.”

The southern edge of the Indian subcontinent holds more than just geography — it holds memory. A memory of a land once lived in, spoken of, and sung about. A land which, as Tamil literature testifies, was lost to the sea. Not myth, not metaphor, but cultural recall. The submerged southern lands of Tamilakam are not an invention of modern imagination — they are deeply embedded in classical Tamil literature, historical commentary, and now, validated in part by science.

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Sunkun landmass

Silappatikaram: A Poet’s Elegy for Lost Lands

In the epic Silappatikaram, written by Ilango Adigal around the 2nd century CE, we hear echoes of a disaster that permanently altered the Tamil landscape. The Pandyan king, saddened and enraged, is described as having lost lands to the sea:

“The cruel sea took away the lands between the rivers Pahruli and Kumari.”
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Silappatikaram, Maturaik Kan̂dam

This literary description aligns with sedimentological and bathymetric studies indicating episodic submergence events near the southern Tamil Nadu coast. Notably, geological evidence from the Gulf of Mannar reveals patterns of sea-level rise and coastline retreat during the Holocene (~12,000–6,000 years BP), a key timeframe for the gradual loss of habitable coastal regions (Sundaresh et al., 2007; Banerjee et al., 2020).

Manimekalai: The Submergence of Puhār

The Manimekalai, another Tamil classic, describes the destruction of the Chola port city Puhār (Kāveripattinam) by a catastrophic sea incursion:

“The angry sea rose and swallowed the city of Kāveripattinam.”

This literary motif has archaeological support. Marine archaeological explorations by the National Institute of Oceanography (NIO) have identified submerged structural remains off the coast of modern-day Poompuhar at depths of 6–8 meters. Excavated features include wharf-like foundations, brick walls, and ring wells, with radiocarbon dating suggesting usage between the 4th century BCE and 2nd century CE (Sundaresh et al., 2004).

The “700 Kāvatam” Mystery

In a 15th-century commentary on Silappatikaram, the scholar Adiyarkkunallar references a lost land area measuring 700 kāvatam, stretching between the rivers Pahruli and Kumari. While the unit kāvatam is approximate and likely symbolic, the association of lost territory with cultural memory indicates a retained awareness of shifting geographies.

Tamil lexicons and classical sources define kāvatam (காவதம்) as a unit of distance equivalent to approximately 10 miles, supported by entries in the University of Madras Tamil Lexicon and other historical dictionaries. This is further supported by texts like the Kanakkatiṟkāram, which quantifies 1 kāvatam as 24,000 muzham (approximately 6¼ miles). In literary contexts, kāvatam is used as a long-distance unit, seen in Silappatikaram where Kovalan refers to Madurai as being “five or six kāvatam away.”

However, scholars caution against interpreting the 700 kāvatam literally. If taken at face value, it would imply a landmass of ~7,000 miles, which is not supported by any geological evidence. Instead, most modern historians and Tamil scholars (e.g., K.A. Nilakanta Sastri, George Hart, Kamil Zvelebil) interpret the 700 kāvatam as a symbolic or poetic measure. They treat Adiyarkkunallar’s account as a reflection of mythologized cultural memory, not a scientifically measured historical geography. The number “700” (a multiple of 7 and 100) is likely numerological and aligned with traditional categorizations, such as the division of the lost Pandyan land into 49 regions (7 x 7 categories).

Although kāvatam is occasionally mentioned in epigraphic records (such as a Chola inscription referencing a distance of 700 kādam between the Ganges and Kanyakumari), this usage is rare. It serves more as rhetorical cosmography than a practical land survey unit. Overall, kāvatam was a real but flexible unit used in literary and symbolic contexts more often than in administrative or epigraphical records.

When Science Caught Up with Poetry

Archaeological and marine geological studies have begun to illuminate the submerged histories preserved in Tamil texts:

  • Poompuhar (Kāveripattinam): Underwater excavations have confirmed the presence of man-made structures off the coast. These include brick platforms, pottery, and ring wells dated to the early historic period.
  • Mahabalipuram: The 2004 Indian Ocean tsunami exposed submerged temple ruins near the shore, validating local legends of the “Seven Pagodas.” Investigations by NIO and international teams suggest some structures date to the Pallava period (7th century CE).
  • Gulf of Mannar: Side-scan sonar and diving expeditions have revealed stone anchors, temple fragments, and submerged cultural debris indicating historical maritime activity now beneath the sea.

Furthermore, sea-level reconstructions using radiocarbon dating and sediment cores confirm that the Tamil Nadu coast experienced major sea-level rise of approximately 60 meters between 11,000 and 7,000 years BP (Banerjee et al., 2020; Rao et al., 2010).

The Pandyan Fish Emblem and the Matsya Connection

Symbolism offers further insight. The Pandyan emblem of twin fish may recall ancient flood narratives. In Hindu mythology, Vishnu’s Matsya avatar saves humanity from a great flood, originating in the southern lands (Dravida). Some Tamil folk retellings merge this with the Pandyan dynasty, suggesting a remembered cultural migration after a deluge.

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While these are not scientific records, such motifs often encode historical experiences. The emblem, when viewed in tandem with the literary and archaeological evidence, underscores a continuity of memory surrounding marine catastrophe.

Tamilakam: More Than Language, A Remembered Landscape

Taken together:

  • Tamil literature (Silappatikaram, Manimekalai) records catastrophic coastal loss.
  • Commentarial traditions (Adiyarkkunallar) offer symbolic quantification of territory.
  • Underwater archaeology confirms the existence of submerged early historic settlements.
  • Geological studies support sea-level rise and tectonic influence along the Tamil coast.
  • Cultural symbols reflect mythologized memory of ancient environmental events.

These multidisciplinary strands do not validate a mythical lost continent (“Kumari Kandam”) in the Lemurian sense, but they do affirm the Tamil literary tradition as a repository of environmental memory.

Conclusion: The Sea Took the Land, Not the Legacy

Tamilakam is not merely a linguistic term; it is a remembered geography encoded in poetry, archaeology, and geological strata. While continental-scale submergence is scientifically unfounded, the gradual inundation of coastal settlements is well-documented. Tamil literature preserved these truths before science could measure them.

When the land sank, the people sang. And in those songs, the land still lives.

References

  • Sundaresh, Gaur A. S., Tripati S., Vora K. H. (2004). Underwater explorations off Poompuhar, Tamil Nadu. Journal of Marine Archaeology.
  • Banerjee, P. K., et al. (2020). Holocene sea-level changes along the Indian coast: a synthesis. Journal of Geological Society of India.
  • Gehrels, W. R., et al. (2003). Late Holocene intertidal peat development and relative sea-level change in Tamil Nadu. Quaternary Science Reviews.
  • Rao, B. R., et al. (2010). Marine archaeological findings and Holocene sea-level changes on the east coast of India. Current Science.
  • University of Madras Tamil Lexicon (1924–1936).
  • Winslow, M. (1862). A Comprehensive Tamil and English Dictionary.
  • Ramaswamy, Sumathi (2004). The Lost Land of Lemuria. University of California Press.
  • Sastri, K. A. Nilakanta. The History of South India (4th ed. 1970).

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