Holy Pamba river of Kerala passes through the northern entrance of the temple.  There is a shrine for Sage Parasurama in the temple.

People pray for the welfare of children.  They bring sick children to the temple, throw away Vanni nuts after rounding them on their heads.  They firmly believe that these thrown nuts attack the disease of the child as the arrows of Arjuna attack the enemies.

Lord Tirukuralappan graces in a standing form facing east.  The vimana-tower above the sanctum sanctorum- is called Vamana Vimanam.  Sage Veda Vyasa and Lord Brahmma had the darshan of the Lord.  Once, two demons Madhu and Kaidaba snatched the Vedas from Brahmma who sought the grace of Lord Perumal to recover them.  Perumal destroyed the demons and recovered the Vedas.  Brahmma performed penance here on Perumal as a token of his gratitude to Lord.

It is here Arjuna hid his weapons in the Vanni tree during Pandava’s life incognito.  The nuts falling from this Vanni tree is heaped around the flag post of the temple and sold to devotees.

During the 18 day Kurukshetra Bharata battle, the wheel of Karna’s chariot was stuck in the ground.  While Karna was engaged to lift the wheel leaving his weapons in the chariot, Arjuna took the opportunity and killed him.  Though Arjuna acted successfully, the guilt of killing one when unarmed troubled his mind and he could not excuse himself.  What more troubled him was the thought that he, noted for his law abiding nature should not have committed a disgraceful sin.

Every Pandava established a temple during their journey in Kerala.  Arjuna established this temple, performed penance on Perumal and was rewarded with the Darshan of Lord in the form of Parthasarathy.  It is here he hid his weapons in the Vanni tree, according to scriptures.  Arjuna thus got himself cleansed of his sins with the grace of Lord Perumal.