The Battle of Ambur took place in 1749, where the forces of the Nawab of Arcot and the British East India Company defeated the French army. This battle marked the beginning of British influence in southern India.
The Battle of Plassey occurred in 1757 and was a significant turning point in the history of British India. The British East India Company, led by Robert Clive, defeated the Nawab of Bengal, Siraj-ud-Daulah, establishing British control over Bengal and laying the foundation for British dominance in India.
The Battle of Wandiwash happened in 1760, where the British East India Company, under the leadership of Sir Eyre Coote, defeated the French forces, effectively ending French influence in southern India.
The Battle of Buxar was fought in 1764 between the forces of the British East India Company and the combined army of the Nawab of Awadh, the Mughal Emperor, and the Nawab of Bengal. The British emerged victorious, consolidating their control over Bengal and laying the groundwork for their subsequent control over northern India.
Therefore, the correct chronological order is Battle of Ambur - Battle of Plassey - Battle of Wandiwash - Battle of Buxar.