The annual Padayani festival of Neelamperoor Palli Bhagavathy Temple is known as Neelamperoor Padayani. The temple is believed to be around 1,700 years old. The main attraction of the festival is its massively decorated effigies of swans. Apart from these giant swans, you can also see effigies of mythological characters like Bhima, Ravana, and Yakshi. 

The festival is conducted in the Malayalam month of Chingam (August/September). The Padayani celebrations begin right after the Thiruvonam asterism, which is on the Avittam day, and continue till the Pooram asterism which marks the birthday of the Bhagavathi.