The siege of Trichinopoly (14 March 1743 – 29 August 1743) was part of an extended series of conflicts between the Nizam of Hyderabad and the Maratha Empire for control of the Carnatic region. On 29 August 1743, after a six-month siege, Murari Rao surrendered, giving Nizam ul Mulk (Nizam) the suzerainty of Trichinopoly. By the end of 1743, the Nizam had regained full control of Deccan. This stopped the Maratha interference in the region and ended their hegemony over the Carnatic. The Nizam resolved the internal conflicts among the regional hereditary nobles (Nawabs) for the seat of governor (Subedar) of Arcot State, and monitored the activities of the British East India company and French East India Company by limiting their access to ports and trading.
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