The correct answer is: A) Kolathiri kingdom.
Bekal Fort is a 16th-century fort situated in the Bekal village in Kasaragod district in the Indian state of Kerala. It is one of the largest forts in Kerala and is considered to be one of the most important forts in the state. The fort was built by the Kolathiri rulers of the Kolathiri kingdom in the 16th century. The fort was built to protect the kingdom from the Portuguese and the Dutch. The fort is a major tourist attraction and is one of the most visited
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