Step 1: Understand the Battle of Colachel
The Battle of Colachel took place in 1741 near Colachel in present-day Tamil Nadu.
Step 2: Participants
It was fought between the forces of the Kingdom of Travancore, led by King Marthanda Varma, and the Dutch East India Company.
Step 3: Significance
This battle marked the first significant defeat of a European colonial power (Dutch) by an Indian kingdom.
It was crucial in establishing Travancore as a dominant regional power in southern India.
Hence, Option (C) is correct.