In an era when transoceanic military expeditions were exceptionally rare and logistically daunting, the Chola dynasty of Southern India, under the formidable Emperor Rajendra Chola I (reigned 1014-1044 CE), executed one of history’s most remarkable naval campaigns. Around 1025 CE, he launched a massive fleet across the Bay of Bengal to attack and subdue the powerful maritime empire of Srivijaya, which controlled key trade routes in Southeast Asia. This expedition underscored the Cholas’ advanced naval capabilities and their ambition to dominate Indian Ocean trade.
The Srivijayan kingdom, with its capital likely at Palembang in Sumatra, held sway over the Malacca and Sunda straits, levying tolls on the rich commerce flowing between India, the Middle East, Southeast Asia, and China. While initial Chola-Srivijaya relations were diplomatic, marked by endowments to Buddhist monasteries, they deteriorated. Historians suggest Srivijayan attempts to restrict or control Indian merchants and their lucrative trade with Song Dynasty China, alongside Rajendra Chola’s own imperialistic ambitions after successful campaigns in India (including reaching the Ganges and earning the title “Gangaikonda Chola”), precipitated the conflict.
The scale of the Chola naval force, though precise numbers are not definitively known, was undoubtedly significant. The Tiruvalangadu and Meikeerthi inscriptions of Rajendra Chola I list numerous territories conquered in the Srivijayan sphere. These eulogistic accounts speak of a “great fleet” (Kappal Padai) crossing the “rolling sea.” Estimates by historians suggest the fleet could have comprised several hundred ships, possibly carrying tens of thousands of soldiers. These were not just transport vessels but likely included purpose-built warships capable of sustained oceanic voyages and combat.
The Chola campaign was strategically well-orchestrated, targeting multiple key Srivijayan centers almost simultaneously or in rapid succession to overwhelm their defenses. Among the fourteen places explicitly mentioned as conquered in Chola inscriptions are:
Srivijaya (Palembang): The capital itself.
Pannai: A port on the Sumatran coast.
Malaiyur (Jambi): Another important Sumatran port.
Kadaram (Kedah): A major Srivijayan entrepôt on the Malay Peninsula, known for its iron production and strategic location.
Ilangasogam (Langkasuka): Also on the Malay Peninsula.
Mappappalam & Mevilimbangam: Believed to be ports in present-day Myanmar or Thailand.
Valaippanduru: Location uncertain.
The Cholas decisively defeated the Srivijayan forces, capturing their king, Sangrama Vijayatunggavarman, and seizing considerable treasure, including the “Vidyadhara-torana” (a jewelled war-gate of Srivijaya). While the Cholas did not establish permanent administrative rule over all conquered Srivijayan territories, the campaign effectively broke Srivijaya’s maritime monopoly for several decades, ensured favourable conditions for Indian traders, and significantly enhanced Chola prestige and influence throughout the Indian Ocean world.
This expedition remains a singular achievement in pre-modern Indian history, demonstrating sophisticated naval logistics, strategic planning, and the capability to project power across vast oceanic distances.