Thiruvilanjal Devi temple is located at Thamllakal near Karuvatta in Alappuzha district, Kerala. The main deity worshipped in the temple is Durga. The sankalpam is that of Vana Durga. The murti worshipped here is swayambhu.
There is no roof for the sreekovil. The darshanam of Thiruvilanjal Devi is towards east.
The Upa Devatas worshipped in the temple are Ghantakarna and Sundara Yakshi.
The 10-day annual festival in the temple concludes on Karthika nakshatra day in Meenam month with arattu.
The first name of the temple was Illanjiyal. The original spot or the swayambhu murti is in a well whose opening is below the ground level. Once in approximately 12 years the water in well in the kavu is manually drained and Bhagavathy is brought out for special utsavam. After the utsavam the deity is returned to the kavu.
Jala Durga presence is seen in the pond (Theertha Kulam) on the northwest side of the temple. Puja is performed here too daily.
The regular vazhipadu is conducted to the deity in the temple in front of the kavu. There is a sump like structure before the deity inside the temple which is linked to the kavu.
There is a pond in the front of the temple for the devotees to cleanse themselves before entering the temple.
A unique Pongala offering is made to the Goddess here. This involves cooking unakkalari (rice) along with Payar (whole moong), Turmeric powder, ginger, whole pepper and salt.