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How did the Seven Years’ War help Britain gain influence in India?

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Seven Years' War: Battle of Zorndorf — Seven Years’ War Frederick II leading his Prussian troops against Russians at the Battle of Zorndorf during the Seven Years' War, August 25, 1758.

The Seven Years’ War (1756–1763) was a pivotal period that facilitated British dominance in India by effectively neutralizing French imperial competition and enabling the British East India Company to transition from a mercantile entity into a formidable military and political power.12

During this global conflict, the British and French sent armies to India to vie for influence over local rulers. Key developments included:3

Military Successes: Under the leadership of Robert Clive, the British achieved decisive victories, most notably at the Battle of Plassey in 1757. This victory secured control over the wealthy province of Bengal, providing the Company with significant territory and revenue.12
Defeat of French Forces: The British defeated the French at Wandiwash in 1760 and captured their capital, Pondicherry, in 1761.34
Diplomatic Consolidation: The Treaty of Paris (1763) formally concluded the war, forcing France to renounce its conquests in India made since 1749.5

Following these events, French influence in India was reduced to insignificance, leaving the British East India Company as the primary European power on the subcontinent.6