Why in the News
An 18 day underwater exploration off Poompuhar, the ancient Chola port city in Tamil Nadu, has recovered a fragment of a West Asian “torpedo jar”, four terracotta ring wells and more than 250 ceramic fragments. The Tamil Nadu State Department of Archaeology (TNSDA) carried it out with the Indian Maritime University. The finds add evidence of the port’s links with West Asia and of a city now largely under the sea.
What was Poompuhar?
- What it is: Poompuhar (Kaveripoompattinam), in Mayiladuthurai district, was a port at the mouth of the 800 km Cauvery. It is believed to be the early Chola capital and their gateway to the sea.
- Literary fame: It features prominently in Sangam and post-Sangam literature, so its trade was known from texts before divers reached it.
- Age of the city: Carbon dating, which dates organic remains, was done on a wooden log. A 2011 archaeology report cites it as showing the city existed by the 4th century BCE.
- Layout: The city had three parts: Maruvurppakkam on the seashore, Pattinappakkam to the west, and Nalangadi between them.
- The takeaway: Finds off Poompuhar show how far early Tamil trade reached, because the port carried the kingdom’s sea traffic.
What does the new exploration reveal?
- Torpedo jar: The fragment is of a fine ceramic jar about 30 to 35 cm across. Such long jars carried wine and olive oil across ocean trade routes.
- Link to the West: The jar is evidence of Poompuhar’s maritime links with West Asia and the Mediterranean world.
- Ring wells on the seabed: Ring wells, pits lined with terracotta rings, were dug on land for fresh water. Underwater, they suggest a buried palaeochannel, an old riverbed drowned by coastal erosion and rising seas.
How old and wide were Poompuhar’s trade links?
- Earlier record of shipping: A 1996 paper by Sila Tripati, A.S. Gaur and others records ships from Tamralipti (West Bengal) and Palur (Odisha) calling at Poompuhar on their way to Southeast Asia, Arabia and Rome.
- Earlier offshore finds: Earlier surveys found Sangam period brick structures, ring wells, storage jars and megalithic pottery offshore. They show people lived beyond today’s shore, probably around a public building, wharf and reservoir.
- Chola branding: Exports were stamped with a tiger symbol marking Chola origin.
- Imports: Articles came from the Ganges region, food from Ceylon and spices from Java, brought by merchants from across India and Southeast Asia.
Why did the city go under the sea?
- Floods: Floods are believed to have swallowed much of the city around the 4th or 5th century CE.
- Tsunami: Studies also suggest a tsunami struck around the 3rd century CE.
- Two scholarly views: Either the whole city sank and was rebuilt, or only part was engulfed. The 2011 report’s authors favour the second.
- The legend: In legend, the city’s goddess drowned it after a grieving king skipped Indra Vizha, a harvest festival for Indra (Vendhan), god of rain. Sreelata Menon’s 2025 book “In Search of Lost Cities” retells it.
Challenges
- Contested dating: Currents move submerged objects from their original layer, so dates stay disputed.
- Short diving seasons: Poor visibility, currents and the monsoon limit working time underwater.
- Ongoing erosion: The erosion that drowned the city keeps wearing down offshore remains.
Way Forward
- Scientific dating: TNSDA should date the jar and ring wells by thermoluminescence and radiocarbon methods.
- Map the buried channel: Use side scan sonar and sub bottom profiling, which image the seabed and the layers under it, to trace the palaeochannel.
- Pool expertise: Link the team with the Council of Scientific and Industrial Research (CSIR)-National Institute of Oceanography, which led earlier Poompuhar surveys.
Conclusion
Poompuhar’s seabed confirms that the early Chola coast sat on an ocean network reaching the Mediterranean, but most of that evidence now lies underwater. How and when the city sank stays unresolved until securely dated finds settle it.
Back2Basics: Sangam literature
- What it is: The earliest body of Tamil literature, traditionally linked to three assemblies of poets under Pandya patronage, the last at Madurai.
- Main collections: Ettuthogai (Eight Anthologies) and Pattuppattu (Ten Idylls), with Tolkappiyam as the earliest Tamil grammar.
- Puhar in the texts: Pattinappalai, one of the Ten Idylls, describes Puhar’s port and trade under the Chola king Karikala.
- Post-Sangam epics: Silappatikaram by Ilango Adigal opens in Puhar, and Manimekalai narrates the city’s destruction by the sea.
Matching Previous Year Question
“[2023] With reference to ancient South India, Korkai, Poompuhar and Muchiri were well known as (a) capital cities (b) ports (c) (d) centres of iron and steel making (d) shrines of Jain Tirthankaras Answer: (b)”