The Vavu Bali, held annually across Kerala, is a significant Hindu ritual dedicated to appeasing ancestors. Taking place in the Malayalam month of Karkidakam (July-August), the ritual involves special ceremonies conducted both at homes and on temple premises.

This ritual is notably observed as a mass event in certain parts of Kerala, with the most prominent gatherings occurring on the banks of the Periyar River near the Shiva Temple in Aluva and on the Papanasam beach in Varkala. These locations, along with others like Thirumullavaram Beach in Kollam and Varakkal Beach in Kozhikode, draw thousands of devotees each year.

Vavu Bali, also known as Karkidaka Vavu or Karkidaka Vavu Bali, is performed on the day of Vavu or Amavasya (new moon). On this day, people gather on riverbanks and beaches to offer ‘bali’, a ritualistic homage believed to help departed souls attain moksha (liberation). The offerings include cooked rice, water, sesame seeds, and herbs like cheroola, all placed on a banana leaf before the ritual begins. Priests from temples, such as the ancient Janardhana Temple in Varkala, assist participants in performing the rites.

Men, women, and children participate in the ceremony, with men typically wearing only a dhoti. The ritual culminates with the offerings being immersed in the waters of the sea or river. The belief is that by performing these rites, one can ensure peace and liberation for their ancestors.

The significance of Karkidaka Vavu Bali lies in the Hindu belief that offering obeisance to the departed souls on this specific new moon day aids them in achieving moksha. The festival has deep-rooted cultural and spiritual importance in Kerala, making it a prominent event in the state's religious calendar.

While the pandemic had subdued the large-scale gatherings in recent years, the festival continues to be an integral part of Kerala’s traditions, drawing large crowds to sacred sites such as Thiruvallam Sree Parasurama Swamy Temple (Thiruvananthapuram), Aluva Mahadeva Temple (Ernakulam), Thirunavaya Navamukunda Temple (Malappuram), and Sree Thirunelli Mahavishnu Temple (Wayanad), among others.

The Vavu Bali is a unique and solemn occasion, reflecting the deep respect and reverence for ancestors in Hindu culture. It offers a glimpse into the spiritual practices that continue to thrive in Kerala, blending tradition with communal participation.