This fortification, now preserved as a national monument under the auspices of the Archaeological Survey of India, holds a rich history dating back centuries.

The extraordinary bravery displayed by Jagadevarayar-I caught the attention of Ranga Raya-II, a representative of the Vijayanagara Empire stationed at Chandragiri.

Under his leadership, this formidable fortress, alongside other Baramahal forts, played a pivotal role in securing the region from invading armies, earning it the title 'Gateway of Tamil Nadu' and leaving an enduring imprint on the historical legacy of the Vijayanagara Empire.

[citation needed] In 1792 AD, following Tipu Sultan's defeat in the Third Anglo-Mysore War at the hands of the Presidency armies and the subsequent signing of the Treaty of Srirangapatna, the East India Company assumed control of Krishnagiri Fort.

[1] The British strategically maintained Krishnagiri Fort as an arsenal, employing it as a pivotal defense structure to safeguard the region.