Sree Sastha Temple at Arattupuzha in Thrissur is believed to be more than 3000 years old and is renowned for the annual festival called Arattupuzha Pooram – the festival is known as Devamela as 23 temples from the area visit and pay obeisance to Sri Sastha worshipped in the temple. Here is the list of 24 temples participating in the Arattupuzha Pooram.
- Arattupuzha Sastha
- Triprayar Thevar
- Urakam Ammathiruvadi
- Cherpu Bhagavathy
- Chathakudam Sastha
- Thiruvullakkavu Sastha
- Anthikkad Bhagavathi
- Thottippal Bhagavathy
- Pisharikkal Bhagavathy
- Edakkunny Bhagawathi
- Ayyunnu Bhagawathi
- Thaikkattussery Bhagavathy
- Kaduppassery Bhagavathi
- Choorakode Bhagavathi
- Poonilarkkavil Bhagavathi
- Chalakudy Pisharikkal Bhagavathy
- Chakkamkulangara Sastha
- Kodannur Sastha
- Namkulam Sastha
- Maattil Sastha
- Nettissery Sastha
- Kalleli Sastha
- Chitti Chathakudam Sastha
- Medamkulam Sastha
Arattupuzha Pooram is known as the mother of all poorams. The evening prior to the last day of the festival is when Sasthavinte Melam takes place. This ceremony is marked by caparisoned elephants and scintillating performances of percussion ensembles like the Panchari Melam and Pandimelam. Kootti Ezhunnallippu or Devasangamam of 23 participating deities is another spectacular event of Arattupuzha.