Battle of Porto Novo

VictorEast India CompanyLieutenant-General Sir Eyre Coote
1781vs
Kingdom of MysoreHaidar Ali

On the sandy coast north of Chidambaram, Eyre Coote found his way blocked by Haidar Ali’s entrenched army. He marched along the dunes, got round the batteries and won the first clear Company victory of the Second Anglo-Mysore War.

Date: 1 July 1781Where: Parangipettai (Porto Novo), Cuddalore district, Tamil NaduType: Battle
Photo: Unknown author · Public domain
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Cite

MLA

“Battle of Porto Novo.” Hindu History, 2026, https://www.hinduhistory.in/battles/battle-of-porto-novo-1781/. Accessed .

APA

Hindu History. (2026). Battle of Porto Novo. Retrieved , from https://www.hinduhistory.in/battles/battle-of-porto-novo-1781/

Result

Coote’s army broke out of the trap between the sea and Haidar’s entrenchments and drove the Mysore army from the field.

01After Pollilur

Haidar Ali had swept over the Carnatic in 1780, destroyed Baillie’s column at Pollilur and taken Arcot. Calcutta sent the veteran Eyre Coote, victor of Wandiwash in 1760, to Madras. Through the first half of 1781 Coote, short of carts and bullocks, failed to take Chidambaram, whose temple-fort Haidar had garrisoned. Haidar then threw up entrenchments across the coast road near Porto Novo, the old Portuguese and Dutch trading town at the mouth of the Vellar, to pin Coote against the sea.

02The march through the dunes

On 1 July 1781 Coote found a track among the sandhills that let his columns pass along the flank of Haidar’s batteries. A ship of the Royal Navy fired on the Mysore lines from the sea. Haidar’s cavalry charged the British lines several times and were beaten back. By evening the Mysore army had left the field, its guns safely carried off. Haidar withdrew towards Arcot. Coote could not follow far for want of supplies, but the Company had its first real victory of the war.

Why it matters

Porto Novo saved Madras from the crisis that followed Pollilur, though Haidar’s army survived it intact.