Marathas Defeat Portuguese at Battle of Vasai

Context

By the early eighteenth century the Maratha Empire had emerged as the dominant power in the Deccan, its influence expanding rapidly under Peshwa Baji Rao I through a series of campaigns against Mughal governors and rival regional states. Portuguese holdings along the western coast, centered on fortified enclaves such as Goa, Daman, Diu, and the strategically placed stronghold of Baçaim (Vasai) north of Bombay, represented lingering European commercial and military footholds dating back to the sixteenth century. These coastal positions had long supported Portuguese trade networks but faced growing pressure as Maratha armies pushed westward to secure access to the sea and to neutralize threats to their expanding territories.

What Happened

The siege of Baçaim opened on 17 February 1739 when Chimaji Appa, brother of the Peshwa and the appointed field commander, positioned his army near the fort after earlier Maratha successes had already cleared most Portuguese outposts in the surrounding region. Maratha troops numbering roughly 40,000 infantry and 25,000 cavalry, supported by specialized mine-layers, camels, and elephants, severed land supply routes while naval actions by Manaji Angre further isolated the defenders. Inside the walls, a garrison of about 1,200 Portuguese and auxiliary soldiers under Captain Caetano de Souza Pereira relied on limited reinforcements from Goa and the authority of Viceroy Pedro Mascarenhas, Count of Sandomil.

Aftermath

The Portuguese commander formally surrendered on 16 May 1739. Chimaji Appa granted the garrison honorable terms, allowing the soldiers to march out with colors, arms, and drums before being transported by sea to Bombay. The Marathas raised their saffron standard over the fort on 23 May. Baçaim and its dependent territories passed to Maratha control, depriving the Portuguese of a key defensive position and supply base north of their remaining Bombay-area holdings.

Legacy

The fall of Vasai accelerated the long-term contraction of Portuguese power on the Indian subcontinent, leaving their coastal empire increasingly confined to Goa and a handful of smaller enclaves. For the Marathas the victory enhanced prestige at a moment when Baji Rao’s confederacy was consolidating its position as the leading indigenous power in western and central India, foreshadowing further confrontations with both European companies and other Indian states in the decades that followed.