The Second Carnatic War (1749-54) broke out due to conflicting ambitions between the two powers who supported rival claimants to the disputed thrones of Hyderabad and Carnatic.
The French supported Muzaffar Jang and Chanda Sahib while the English supported the claims of Nasir Jang and Anwar-ud-Din.
The combined forces of Muzaffar Jang, Chanda Sahib, and the French defeated and killed Anwar-ud-Din at the battle of Ambur near Vellore in 1749.
The Carnatic came under the control of Chanda Sahib.
Chanda Sahib rewarded the French with a grant of 80 villages around Pondicherry.
Nasir Jang was killed and Muzaffar Jang became the Viceroy or Nizam of the Deccan.
When Muzaffar Jang was accidentally killed in 1751, the French placed Salamat Jang on the throne who in return gave the area known as the Northern Sarkars to the French.
The French power in South India was now at its height.
To offset French influence, the British allied with Nasir Jang and Muhammad Ali (Anwar-ud-Din’s son).
In order to help Muhammad Ali, who was besieged by French forces at Trichinapalli, Robert Clive attacked Arcot, the capital of Carnatic.
This compelled the French to raise the siege of Trichinappalli and led to their defeat.
Chanda Sahib was soon captured and killed.
French Government initiated peace negotiations.
By the Treaty of Pondicherry the hostilities ended for a while.
Treaty of Pondicherry
The Treaty of Pondicherry was signed in 1754 bringing an end to the Second Carnatic War.
It was agreed and signed in the French settlement of Puducherry in French India.
The favoured British candidate Mohamed Ali Khan Walajan was recognized as the Nawab of the Carnatic.
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