Devasahayam Pillai was the first Indian layman to be canonized as a saint by the Catholic Church.
The hill was historically known as Kattadimalai, meaning 'Windy Hill,' due to the strong cross-winds in the Aralvaimozhi pass.
The site includes a natural rock formation believed to be where the saint prayed before his execution.
The canonization ceremony took place at the Vatican on May 15, 2022, elevating the mount's status to a major national shrine.
The location is situated near the natural gap in the Western Ghats, which is a major wind energy corridor in Tamil Nadu.
St. Devasahayam Mount is the site of the martyrdom of Devasahayam Pillai, a 18th-century convert to Christianity canonized by the Catholic Church in 2022. The site features a shrine built on the hill of Kattadimalai, where Devasahayam was executed in 1752. The mount serves as a significant pilgrimage center for the Roman Catholic Diocese of Kottar. It includes a rock-cut area associated with his final moments and a modern shrine structure. The location offers a vantage point overlooking the Aralvaimozhi pass in the Western Ghats.
The viewing area at the top of the mount providing panoramic views of the wind farm-dotted valley.
Wear sturdy footwear as the path up the mount involves uneven rocky terrain.
Bring a hat and sunscreen as there is limited shade during the climb.
Carry adequate water, especially during the warmer months.
Attempting to climb during heavy monsoon rains when the paths may become slippery.
Modest dress is required; ensure shoulders and knees are covered as this is a sacred religious site.