Complex sentence: In another disputed succession of the Carnatic which was ruled by the Nizam's deputy, the Nawab of Arcot, the French supported Chanda Sahib and he was appointed as the Nawab of the Carnatic.
Split into simpler sentences: In another disputed succession of the Carnatic which was ruled by the Nizam's deputy, the Nawab of Arcot. The French-supported Chanda Sahib and he was appointed as the Nawab of the Carnatic.