Poompuhar Excavations Reveal Ancient Tamilakam’s Maritime Links with West Asia and Wider Indian Ocean Trade Networks

Recent Developments:

• The Tamil NadState Department of Archaeology, in collaboration with the Indian Maritime University, conducted the third phase of underwater archaeological exploration off Poompuhar in Mayiladuthurai district, Tamil Nadu, during September 2026.
• The exploration recovered a fragment of a West Asian torpedo jar, more than 250 ceramic fragments including glazed ware, and 4 terracotta ring wells from an underwater area covering nearly 2 square kilometres.
• The torpedo-jar fragment is significant because such vessels were used to transport liquid commodities such as wine and oil through western Indian Ocean maritime routes, strengthening evidence of Poompuhar’s commercial links with West Asia and the Mediterranean world.
• The ring wells found on the seabed may indicate the presence of a palaeochannel, suggesting that parts of the ancient settlement and its landscape were subsequently submerged because of coastal changes and erosion.
• The exploration is important for understanding ancient Indian maritime trade, coastal archaeology, Chola history and the integration of Tamilakam into wider Indian Ocean networks.

Poompuhar: Historical and Geographical Significance:

Location and Historical Importance:

• Poompuhar, also known as Kaveripoompattinam or Kaveripattinam, was an important early Chola port situated at the mouth of the Cauvery River, where the river meets the Bay of Bengal.
• The settlement occupied an important position on the Coromandel Coast, providing access to maritime routes across the Bay of Bengal and the wider Indian Ocean.
• Sangam and post-Sangam literature portray Poompuhar as a major commercial centre frequented by merchants from different parts of India and Southeast Asia.
• The city was traditionally described through Maruvurppakkam, located near the seashore, Pattinappakkam, located towards the west, and Nalangadi, situated between the two.
• Literary and archaeological evidence together indicate that Poompuhar functioned as an important centre of commerce, craft production, maritime exchange and urban activity.

Archaeological Evidence:

• Earlier underwater investigations had already indicated that the ancient habitation extended beyond the present shoreline, while recent excavations have added material evidence for its wider maritime connections.
• The discovery of a West Asian torpedo-jar fragment provides material evidence that complements literary references to Poompuhar’s overseas commercial activity.
• The recovery of ring wells, pottery and structural remains is also important for reconstructing the ancient settlement, freshwater management and changing coastal landscape.
• The Government of India had permitted the Tamil NadState Department of Archaeology to undertake exploration at Poompuhar in 2025; a Lok Sabha reply in March 2026 stated that the report of that work had not yet been submitted at that time.

Poompuhar and Ancient Indian Ocean Trade:

West Asian and Mediterranean Connections:

• The torpedo jar is an important archaeological indicator because these vessels were associated with the transportation of liquid cargo across western Indian Ocean routes.
• Its presence at Poompuhar supports the interpretation that Tamilakam participated in maritime exchanges extending towards West Asia, the Persian Gulf and the Mediterranean-linked trade system.
• The evidence demonstrates that ancient Indian maritime commerce involved not only coastal exchange but also long-distance transoceanic networks.

Southeast Asian Connections:

• Poompuhar's geographical position on the eastern coast facilitated connections with Sri Lanka, Southeast Asia and other Bay of Bengal trading centres.
• Literary evidence describes the movement of commodities and merchants between Poompuhar and regions associated with present-day Southeast Asia.
• These networks contributed to the movement of goods, people, cultural practices, religious ideas and technologies across the Indian Ocean.

Maritime Trade of Major Ancient Indian Powers:

Mauryan Empire:

• The Mauryan Empire developed extensive internal and external trade networks connecting different regions of the subcontinent with maritime centres.
• The Arthashastra refers to the Navadhyaksha, an official associated with waterways and shipping, indicating state attention to maritime activity and regulation.

Satavahanas:

• The Satavahanas played an important role in trade connecting the Deccan with the western coast.
• Ports such as Kalyan, Sopara and Bharukachcha facilitated commercial exchanges with western Indian Ocean and Roman trading networks.

Cheras:

• The Muziris region on the Malabar Coast emerged as an important centre of overseas commerce.
• The Periplus of the Erythraean Sea and Sangam literature provide evidence of maritime trade involving the Chera realm, particularly in commodities such as pepper and other high-value goods.

Pandyas:

• The Pandyan kingdom participated in Indian Ocean commerce through ports such as Korkai, which was particularly associated with the pearl fisheries of the Gulf of Mannar.
• Korkai therefore illustrates the relationship between maritime trade, coastal resources and specialised commodity production.

Western Kshatrapas:

• The Western Kshatrapas controlled parts of western India and participated in Arabian Sea trade through important commercial centres of Gujarat and the western Deccan.

Pallavas:

• The Pallavas maintained maritime and cultural connections from the eastern coast with Southeast Asia, particularly regions corresponding to present-day Cambodia and mainland Southeast Asia.
• These links demonstrate that maritime commerce also facilitated wider cultural transmission and political interaction.

Other Important Ancient Indian Ports:

Western and Southern Coast:

• Muziris: An important Malabar Coast centre associated with trade across the Arabian Sea and contacts with the Roman world.
• Bharuch: Located on the Narmada and known as Broach, it became an important western Indian commercial centre connected with inland and maritime trade.
• Korkai: A major Pandyan port associated with the Gulf of Mannar pearl fisheries.

Eastern Coast:

• Arikamedu: Located near present-day Puducherry, it has yielded archaeological evidence of Indo-Roman commercial connections.
• Tamralipti: Located in present-day West Bengal, it was an important eastern maritime centre connecting India with both western and eastern trading regions.
• Kaveripattinam: The port of Poompuhar served as an important centre for trade with Southeast Asia and the Far East; NCERT material also identifies it as a major centre for merchandise handling and shipbuilding.

Maritime Trade as a Driver of Ancient India’s Prosperity:

Economic and Urban Impact:

• Overseas trade generated wealth, customs revenue and wider markets for Indian agricultural, craft and luxury goods.
• Major ports developed into urban commercial centres, attracting merchants, artisans, sailors and specialised service providers.
• Foreign demand encouraged specialised production of textiles, spices, beads, ceramics, pearls and metal goods.
• Rulers benefited through customs duties, port taxes and regulation of commercial activity.

Cultural and Technological Impact:

• Maritime networks facilitated the movement of religions, art, languages, ideas and technologies across the Indian Ocean.
• Sustained maritime commerce encouraged advances in shipbuilding, navigation and knowledge of seasonal monsoon winds.
• NCERT notes the ancient Indian tradition of stitched shipbuilding, in which wooden planks were joined using cords rather than nails, demonstrating technological adaptation to Indian Ocean sailing conditions.

Underwater Archaeology and Changing Coastal Landscapes:

Archaeological Significance:

• Poompuhar demonstrates how underwater archaeology can supplement literary and terrestrial archaeological evidence for reconstructing ancient Indian history.
• The discovery of structures and ring wells below the present sea level suggests that archaeological interpretation must consider coastal erosion, changing shorelines, palaeochannels and sea-level changes.
• Modern investigations use technologies such as side-scan sonar, echo sounders and other seabed-survey techniques to identify submerged archaeological features before targeted excavation.

Broader Historical Significance:

• Poompuhar provides a case study of how ancient Indian coastal settlements were simultaneously economic centres, cultural interfaces and nodes in international trade networks.
• Its archaeological record helps connect Sangam literature with material evidence, strengthening the multidisciplinary study of early historic South India.
• The continuing exploration also demonstrates the importance of protecting submerged cultural heritage from coastal erosion and changing marine conditions.

UPSC Relevance:

General Studies Paper I:

• Ancient Indian History: Sangam Age, early Cholas, Cheras, Pandyas and ancient urban centres.
• Indian Culture: Maritime heritage, literature, archaeological sources and cultural exchanges.
• Geography: Coastal geomorphology, palaeochannels, erosion and changing shorelines.
• World History Linkage: Ancient Indian Ocean networks and India's commercial connections with West Asia, the Mediterranean and Southeast Asia.

Prelims Focus:

• Poompuhar: Early Chola port on the Cauvery–Bay of Bengal interface.
• Korkai: Pandyan port associated with pearl fisheries.
• Muziris: Major Malabar Coast trading centre.
• Arikamedu: Important archaeological site associated with Indo-Roman trade.
• Tamralipti: Major eastern maritime centre.
• Arthashastra: Reference to Navadhyaksha in the context of waterways and shipping.
• Periplus of the Erythraean Sea: Important source for ancient Indian Ocean commercial networks.

Value Addition for UPSC:

Analytical Framework:

• Archaeology + Literature: Poompuhar shows how archaeological material can corroborate and contextualise evidence from Sangam and post-Sangam literature.
• Indian Ocean World: Ancient India was an active participant in a wider maritime system linking South Asia, West Asia, the Mediterranean and Southeast Asia.
• Economic History: Ports functioned as nodes connecting production centres, inland markets and overseas consumers.
• Cultural Diffusion: Maritime trade facilitated the circulation of commodities, technologies, languages, religions and cultural practices.
• Environmental History: The submergence of parts of Poompuhar highlights the role of coastal erosion, palaeochannels and changing shorelines in shaping human settlements.
• UPSC Core Insight: Poompuhar demonstrates that ancient India's maritime economy was not an isolated coastal phenomenon but an interconnected system in which ports, inland production centres, merchant networks, monsoon navigation and overseas markets collectively supported economic and cultural exchange across the Indian Ocean.