Carnatic Wars

Regional setting and origins

In eighteenth-century political usage, the Carnatic referred broadly to the southeastern coastal region associated with the Coromandel Coast, not to the modern state of Karnataka. Arcot was the seat of its nawab, while Madras and Pondicherry were the principal English and French coastal bases. Hyderabad, ruled by the Nizam, exercised a nominal superior authority over the Carnatic, although regional rulers increasingly acted independently as Mughal power weakened.

The English East India Company, established in 1600, and the French East India Company, founded in 1664, initially sought commercial advantage. Competition over textiles, ports and shipping gradually became linked to fortification and military mobilisation. European wars brought their settlements into conflict, while disputed Indian successions offered opportunities to obtain revenues, territory and influence by supporting rival claimants.

Indian rulers were active participants rather than merely spectators. They sought European troops and artillery to strengthen their own positions. The resulting alliances were contingent: company officers, regional nobles and succession claimants pursued overlapping but distinct objectives. The Carnatic Wars therefore cannot be understood as either purely European conflicts or a simple contest between Europeans and Indians.

• Map focus: locate Arcot, Madras or Chennai, Pondicherry or Puducherry, Trichinopoly or Tiruchirappalli, Wandiwash or Vandavasi, and Hyderabad.
• Political distinction: the Nizam of Hyderabad and the Nawab of the Carnatic were separate authorities, although their succession struggles became interconnected.

First Carnatic War, 1746–1748

The First Carnatic War arose from the War of the Austrian Succession in Europe. In 1746, a French fleet commanded by La Bourdonnais captured Madras from the English. Differences then emerged between La Bourdonnais and Joseph François Dupleix, the French governor at Pondicherry, over the settlement and disposal of the captured town.

Anwar-ud-din, the Nawab of the Carnatic, attempted to assert his authority over the European settlements. At the Battle of Adyar, associated with St Thomé, a relatively small French force defeated his much larger army. The encounter demonstrated the local effectiveness of coordinated infantry fire and disciplined formations. Its significance should not be exaggerated into a claim that all Indian armies were inherently inferior: leadership, organisation, terrain and deployment mattered.

The French failed to capture Fort St David, while an English attempt against Pondicherry in 1748 was also unsuccessful. The Treaty of Aix-la-Chapelle ended the European war and its Indian extension. Madras was restored to the English, while Louisbourg in North America was returned to France as part of the wider settlement. Neither company obtained a decisive territorial advantage, but European officers recognised the political possibilities of military intervention.

Second Carnatic War, 1749–1754

The second war emerged primarily from Indian succession disputes. The death of Nizam-ul-Mulk Asaf Jah I in 1748 generated rivalry in Hyderabad between his son Nasir Jang and grandson Muzaffar Jang. In the Carnatic, Chanda Sahib challenged Anwar-ud-din. Dupleix supported Muzaffar Jang and Chanda Sahib; the English supported Nasir Jang and, after Anwar-ud-din’s death, his son Muhammad Ali.

At Ambur in 1749, forces supporting Chanda Sahib and Muzaffar Jang, assisted by the French, defeated and killed Anwar-ud-din. Muhammad Ali took refuge at Trichinopoly. Nasir Jang was killed in 1750, and Muzaffar Jang briefly became Nizam before being killed in 1751. Bussy then helped establish Salabat Jang in Hyderabad. The French gained substantial influence at his court and secured assignments of revenue from parts of the Northern Circars to maintain their troops.

The English response included Robert Clive’s seizure of Arcot in 1751. By attacking the Carnatic capital, Clive sought to divert pressure from Muhammad Ali at Trichinopoly. His defence of Arcot enhanced English prestige and helped alter the course of the struggle. Subsequent operations involving Stringer Lawrence strengthened the English position; Chanda Sahib was captured and killed in 1752.

Dupleix’s ambitious policy required expenditure that the French authorities were increasingly unwilling to sustain. He was recalled in 1754 and replaced by Charles Godeheu. The Pondicherry settlement sought to restrain intervention in Indian political disputes. Muhammad Ali emerged as the recognised Nawab of the Carnatic, although French influence under Bussy at Hyderabad did not immediately disappear.

Third Carnatic War, 1756–1763

The Third Carnatic War formed part of the Seven Years’ War, a global conflict involving European powers and their overseas possessions. Count de Lally arrived in India in 1758 and captured Fort St David. However, his attempt to take Madras in 1758–1759 failed. Financial shortages, difficulties in obtaining supplies and tensions within the French command weakened his campaign.

Lally recalled Bussy from Hyderabad to reinforce operations in the Carnatic. This reduced French influence in the Deccan at a critical moment. English forces under Francis Forde captured Masulipatam in 1759, further undermining the French position on the eastern coast.

The decisive land battle occurred at Wandiwash on 22 January 1760. Eyre Coote defeated the French army commanded by Lally, and Bussy was taken prisoner. The English subsequently reduced French strongholds, and Pondicherry surrendered in January 1761. The Treaty of Paris in 1763 restored French trading settlements, including Pondicherry, but France no longer possessed a comparable capacity to contest British political expansion in India.

• Exam distinction: Wandiwash was fought in 1760; Pondicherry fell in 1761; the Treaty of Paris followed in 1763.
• French commercial presence survived; French prospects of establishing a rival territorial empire were decisively weakened.

British advantages and historical significance

British success resulted from several interacting advantages rather than one battle alone. Naval strength helped maintain communications, move reinforcements and interrupt French supplies. The English Company possessed a broader network of bases, notably Bombay, Madras and Calcutta. Its growing position in Bengal after Plassey in 1757 widened access to money and supplies. This should not be confused with the grant of Bengal’s Diwani, which came only in 1765.

French efforts suffered from financial weakness, inadequate and irregular support from Europe, and disputes among commanders. The French Company’s dependence on royal backing could become a vulnerability when metropolitan priorities lay elsewhere. English commanders also faced setbacks, but more dependable logistical support and effective coordination increasingly favoured them.

The wars established a pattern of company intervention in succession disputes, support for dependent rulers, and the maintenance of European-trained sepoy forces through Indian revenues. They did not create British supremacy over the entire subcontinent overnight: Mysore, the Marathas and other powers remained formidable. Their immediate significance was the removal of France as the leading European competitor for territorial power and the consolidation of English influence in the Carnatic.

• Do not confuse the Carnatic Wars with the later Anglo-Mysore Wars.
• Remember the changing drivers: European war in the first conflict, Indian succession politics in the second, and global Anglo-French war in the third.

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