As per the Legend stated in Brahmanda Purana, Parasurama who exterminated Kshatriyas for 21 times performed a Yajna to get relieved from the Sins and donated all his lands to Brahmans as a Dakshina. He requested Lord Varuna (God of Rain) to throw a piece of Land from the sea to retire and continue with his penance.
Lord Varuna gave him a winnow (surpa), which turned into a territory. Another version is that Varuna asked Parasurama to hurl the axe into the sea which turned into the territory. It was then known by Surparaka which came from the word Surpa (winnow). This is the present day Kerala as per the legends.
He then went to Mount Kailash and requested his Guru Lord Siva to make Kerala as his abode. On his disciple's request, Siva with His Consort Parvathi, Ganapathi, Subramanya and other Gana's followed his disciple and disappeared after reaching Thrissur. Parasurama saw the self-manifested Siva Linga under the huge Banyan Tree. This is the first place where Lord Siva manifested himself and this place known as Sri Mula Sthana.
Vadakkunnathan Temple Darshan Timings
Morning Hours: 4:00 am - 10:00 am
Evening Hours: 5:00 pm - 8:20 pm