The temple's principal deity is Lord Shiva, worshipped in his tranquil and meditative form.

A sub-shrine dedicated to Lord Ganesha is also present within the temple complex, where devotees seek his blessings for wisdom, removal of obstacles, and auspicious beginnings.
Festivals
The Temple has a number of festivals. The important ones are :
Prathishta Dinam
Prathishta Dinam at Allunkal Siva Temple is celebrated during the Makaram month with great devotion and joy. The festivities include Annadanam for devotees, a vibrant Ghoshayatra accompanied by traditional music, and cultural programs like Ganamela, creating a spiritually uplifting atmosphere.
Thiru Ulsavam
Thiru Ulsavam at Allunkal Siva Temple is marked by rituals like Kalasha Pooja, Navakam, and a grand Ghoshayatra that enhances the spiritual fervor of the festival. The celebration also features Annadanam, where devotees are served with sacred food as part of the temple's tradition of devotion and hospitality.
Contact Address: Allunkal Siva Temple, Kokkathodu, Konni, Pathanamthitta, Kerala