Marathas Defeat Portuguese at Battle of Vasai
During the decline of Portuguese power in India amid expanding Maratha influence in the Deccan, the Maratha Empire under Peshwa Baji Rao I launched campaigns to reclaim coastal territories. The Battle of Vasai (Bassein) pitted Maratha forces against a Portuguese garrison defending the strategically vital fortress north of Bombay. On May 16, 1739, after a prolonged siege involving artillery and infantry assaults, the Marathas captured the fort, forcing Portuguese surrender. The victory significantly weakened Portuguese colonial holdings in western India and boosted Maratha prestige.