There are two major festivities celebrated by the parish apart from the mandatory feasts in the liturgical calendar.

Feast of St.Sebastian, the patron saint, is commemorated on 14th Jan to 20th Jan. every year. The perunnalis celebrated with all pomp and show. The major attraction of the festival (perunal) is the colorful procession (pradakshinam)on the eve of the festival day which   goes round almost the whole of Chellanam, with a good number of people lining up for the procession carrying decorated statues of the saints and Mother Mary.The processionis received by the devotees on the entire route with illumination and fireworks.

Feast of St. Joseph, This is celebrated with devotion on 27th April to 1st May every year.


Other feasts celebrated in the parish are:

• Feast of St. Antony
• Feast of the Sacred Heart of Jesus