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Portuguese maritime power disrupted the character of trade in the Indian Ocean in the 16th century. Review.

This question was previously asked in
UPSC CSE 2025 (Prelims) CSAT Official Paper (25-May-2025)

The arrival of Portuguese maritime power in the Indian Ocean in the 16th century, beginning with Vasco da Gama’s voyage (1498), profoundly altered the character of long-standing trade networks. For centuries, the Indian Ocean functioned as an open trading zone where Arab, Indian, Malay, and Chinese merchants exchanged goods under shared customs without militarized coercion. The Portuguese, however, infused this system with an unprecedented element of armed dominance, motivated by crusading zeal and the pursuit of monopoly profits.

Their impact was most evident in three spheres. First, naval supremacy: equipped with advanced ships (caravels, carracks) and heavy artillery, they defeated regional powers such as the Zamorin of Calicut and the Mamluks, and established fortified strongholds at Goa, Diu, Daman, and Malacca. Second, the cartaz system: all non-Portuguese vessels were required to obtain a license (cartaz) and often dock at Portuguese-controlled ports. Ships refusing compliance were liable to attack or confiscation, allowing the Portuguese to control strategic choke points and extract tribute. Third, the shift to coercion: whereas Indian Ocean commerce had previously thrived on mutual trust and relative freedom, the Portuguese imposed a regime of intimidation, piracy, and forced regulation.

Although they never secured an absolute monopoly—given the ocean’s vastness and the resilience of Asian traders—the Portuguese transformed trade patterns. They redirected spice flows toward Lisbon, undermined traditional Arab and Venetian intermediaries, and set a precedent for European maritime empires. Their arrival thus marked the transition from a decentralized mercantile system to one increasingly shaped by state-backed naval power and coercion.

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Sakshi Negi

Sakshi Negi is a Delhi-based journalist and content specialist with expertise in educational content and digital media, focusing particularly on government exam preparation and career guidance. With a degree in Journalism and Mass Communication from NRAI School of Mass Communication and her background as a Kendriya Vidyalaya alumna, she brings unique insights into the Indian education system and government sector opportunities.

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