Chemmanvilai ( செம்மன்விளை) is a village in Chadayamangalam Panchayat, Kalkulam Taluk in Kanyakumari District, Tamil Nadu, India.

The nearest railway station is located in Eraniel at a distance of approximately 6 kilometres (3.7 mi).

In the little church in Chemmanvilai martyr Devasahayam Pillai came to pray in his last days of life.

[2] St. Antony Church Festival is celebrated for ten days with grand events with prayer, music, drama and fireworks that add color to this religious event.

The festival dates are based on the St. Antony Feast, in last weeks of May every year.