Question

why were the carnatic wars fought

Answer 1

The three Karnatic wars were fought in India to gain control over swathes of land and an emerging market.

Answer 2

The East India company led to control by the British Company over most of India and eventually to the establishment of the British Rule. In the 18th century, the coastal Carnatic region was a dependend upon Hyderabad. Three Carnatic Wars were fought between 1746 and 1763.
The wars were- First Carnatic War
Second Carnatic War
Third Carnatic War
The result was that the british won.