The Travancore forces got victory over the Dutch East India Company at Colachel in Kanniyakumari district in 1741.
New evidence, suggests that the Travancore army had in its service a German sergeant, Carl August Duijivenschot, who had deserted the Dutch East India Company at Kanniyakumari.
He played a significant role in the battle of Colachel against the Dutch and their defeat.
King Martanda Varma rewarded Duijvenschot appointing him a general in recognition of his services in the siege of Colachel and his successful enlistment of Europeans for the Travancore army.
This has written by Mark de Lannoy of Leiden University in his book, The Kulasekhara Perumals of Travancore: History and State Formation in Travancore from 1671 to 1758.