The main festival of the temple is the 8th day annual Sivarathri festival in kumbha masa. The Kodiyettam is conducted prior to the eighth day of karuthavavu. Under the auspicious leadership of Tharananalloor and Tanniyil Mathiyathu Mana Namboothiries Prasadasudhi , Asthrakalasa pooja, Rakshokhna homam, Vasthu homam, Vasthukalasa pooja, Vasthubali, Vasthu kalasam, Chathur Sudhi, Dhara, Panchagavyam, Panchakam karmas are conducted for the rejuvenation of Lord Mahadeva. The holy “Kodikkayar” is brought ceremonially by the traditional “Muriyamkeril family” authorised for preparing the kodikkayar with all sacredness and vrithas from very ancient times. After the flag hoisting ceremony (Thrikodiyettu) kodiyettu sadya (Annadanam) is conducted every year.”Sreebhoothabali” is conducted on all festival days. Ulsavabali is also conducted during the festival days, as vazhipadu by devotees. During the festival days Seeveli Ezhunnallathu is performed during morning and evening on the top of an Elephant. After athazhapooja vilakkinezhunnallathu is also conducted at night.
Lord Purandareswara visits the ancient Brahmin manas – Thevalapozhil in Valamangalam South, Naranathu and Pallikkeezhil in Thuravoor South and Kainikkara mana of Thuravoor North during the festival days and special Erakkipoojas are conducted in these manas. Lord Purandareswara on the way to Manakkal Pooja of Kainikkara mana will also visit Lord Vadakkanappan of Thuravoor Mahakshethram. Kheeradhra’s are conducted on the second day of the festival and on the Mahasivarathri day. The early morning session of Mahasivarathry begins with Ashtabhishekam, Deepakazhcha and Chuttuvilakku. Thousand of devotees arrive here to get the holy darsan of Purandareswarathappan. The Maha Annadanam for all devotees arriving here is conducted on auspicious day of Mahasivarathri. The Mahanaivedya vazhipadu is conducted by Valamangalam North 759 NSS Karayogam.
Mahasivarathri pooja conducted during midnight is attended by thousands participating in Sivarathri Noyambu. This Noyambu is concluded only after accepting the abhisheka theertham during this midnight pooja. The holy deity of Purandareswaram with all floral and ornamental decorations is taken for Mahsivarathri Vilakku.
The holy “Aarattu” is held in the temple pond in front of the temple.From the first day of the festival, Nirapara offerings are done in front of the kodimaram.
Recalling the temple history demonstrating a philosophic Darshana to a Brahmin pandit, the Ashtami Darshanam is celebrated on the auspicious “Vaikkathashtami day” which comes in Vrishchika month of Malayalam era. Thousands of devotees arrive here on the early morning hours of Ashtami to receive the Holy Darshanam.
The tenth day of Medam known as Pathamudayam is celebrated here with all traditional proceedings. Udayam Pooja – the holy offering of the common man for peace, prosperity and agricultural blessings is done at this holy shrine. The famous ezhunnallathu of Lord Narasimhamoorthy (Vadakkanappan) of Thuravoor to visit the arrival place of the Lord at Sreebhoothanilam is celebrated on this auspicious day. Lord Purandareswarathappan also accompanied Vadakkanappan and Thekkanappan in this Pathamudayam Ezhunnallathu to Sreebhoothanilam, but years back this custom was stopped. During the Ashtamangala Prasna this custom was revealed and the astrologers predicted that “Bhagavan” has a “Gamanam” to southern side in pathamudayam day.
The holy star of Mahadevan – “Thiruvathira” of Dhanu maasa is celebrated with all traditional rituals. “Thiruvathirakali” is conducted by Lady Worshippers on the Makayiram night. Special offerings like “Saisyam” are conducted on this day. It is to be noted that the famous “Thiruvathira Sandhyavela” festival of Thuravoor Mahakshethram is conducted under the Valamangalam North NSS Karayogam, who are the administrations of this Purandareswaram Temple.
Thuravoor kara, in ancient times was a Brahmin village inhabited by Brahmin families. These families were the owners of the temple in this kara. Among them are Thuravoor Mahakshethram, Purandareswaram Mahakshethram, Thiruvenkita Puram.
The famous “Kootti Ezhunnallathu” of Thuravoor temple during the Deepavali day is attended by thousands of devotees. The main “Devan” among other four deities is Purandareswarath Mahadevan. Apart from Narasimhamoorthy and Mahasudarsanamoorthy the main deities of Thuravoor temple other among the participating deities – Lord Krishna of Thiruvenkidapuram, Lord Krishna of Pattathalil, Lord Krishna of Mannath and Lord Krishna of Kainikkara and Lord Mahadevan of Purandareswaram. Purandareswarathappan is the only in Saiva sect. and is positioned west to Lord Narasimha in this Kootti Ezhunnallath.
The first day of Malayalam era (Aandupirappu), Vinayaka Chathurthy, Thiruvonam, Sarppa Prathishta anniversary (Revathi star in Kanni), Durgashtami-Mahanavami-Vijayadashami – Navarathri Pooja Festival, Mandala pooja festival commencing from Vrischikam 1 to 41 days, Makarasankramam, Vishukkani darshanam in Meda masam, the installation anniversary (Atham star in the month of Mithunam) – Kalabhabhishekam, Ramayanamasam (Karkkidakam), Karkkidaka Vavu (Namaskaram offerings to the departed souls), Niraputhari are the other important festivals.
Ramayanam recital in poetry form is offered on all Karkkidakam days. A Sampoorna Ramayana Parayanam is conducted here on 15th of August every year under the Akhila Bharatha Ayyappa Seva Sanghom, Purandareswaram Branch. Ganapathi Homam and Bhagavathi Seva are conducted in all the Karkidakam days.
Thousands of children arrive here on the Durgashtami day with book bundles for the Saraswathi Pooja arranged in special Navarathri Mandapam. Children at the age of 3 and 4 arrive here for their beginning of education (Ezhuthiniruthu) on the auspicious Vijayadashami day.
