Besides the daily services (Theva), there are also weekly and annual poojas and rituals dedicated for the
Sacred Tooth Relic which has been continuously carried out since ancient to present times. Some rituals
are in place to bless the agricultural based country with timely rains & prosperity. Among these
numerous festivals, the New Harvest Festival in January (Duruthu), the New Year Festival in April (Bak),
Esala Perahera Festival in July or August (Esala or Nikini) and Karthika Festival in November are
considered as the four main traditional festivals of the Temple of Sacred Tooth Relic.