This fort is in Kannur District of Kerala. The British East India Company built the fort in 1708 to establish a stronghold on the Malabar Coast. In 1781 Hyder Ali, ruler of the Kingdom of Mysore, was unsuccessful in capturing the Fort in his campaign to control Malabar. Identify this fort.

Thalassery Fort is the correct answer as it was built by the British East India Company in 1708 in Kerala's Kannur district to establish control over the Malabar Coast. The fort came under attack in 1781 when Hyder Ali attempted but failed to capture it during his campaign to control Malabar. Bekal Fort is much larger and built by the Ikkeri dynasty, while Palakkad Fort was built by Hyder Ali himself, making the Thalassery identification unique.