There was a huge banyan tree on the south-western side, with the presence of all deities, especially Lord Guruvayoorappan (another form of Lord Vishnu, also considered to be Lord Krishna), the major deity of the world-famous Guruvayoor Temple, situated 50 km away from Thiruvilwamala towards the south-west. One of its branches broke down on 25 June 2015 after heavy rains, and destroyed the south-western portion of the nalambalam. As the incident occurred after the nada was closed, no danger occurred. Later, it was destroyed. Now, a new banyan plant is planted on the place of this tree. There are idols of various Hindu gods below this plant.