The thirteen-day long Car festival (Ther) in the Tamil month of Chithirai (April-May) is the most famous festival celebrated in this temple. It attracts lakhs of devotees from across of the country. Pradosham Pooja is conducted grandly.
The 18th day of Tamil month Aadi (July-August) is called “Adiperukku” and it attracts large number of devotees who perform poojas on the river banks.
Taking a dip in the river and performing rites during Amavasyas, especially Thai Amavasya and eclipse days are traditionally followed in this temple.
Arulmigu Sellandiamman Temple – Festivals
The temple celebrates festivals in Chithirai (April-May); Aadi (July-August); Margazhi (December-January) and Purattasi Navarathri in September-October.
The most important festival of the temple is the 21 day Vaikasi (May-June) festival celebrated in all grandeur. Aadi Friday in July-August, Navarathri in September-October, Deepavalii in October-November, Karthikai in November-December, Pongal falling almost on January 14, Friday in Thai month (January-February), annual consecration ceremony, Panguni Uthiram in March-April are other festivals celebrated in the temple.