The temple follows Vaikhanasa Agama. The temple priests perform the pooja (rituals) during festivals and on a daily basis. As at other Vishnu temples of Tamil Nadu, the priests belong to the Vaishnavite community, a Brahmin sub-caste. The temple rituals are performed four times a day: Kalasanthi at 8:00 a.m., Uchikalam at 12:00 p.m., Sayarakshai at 6:00 p.m., and Ardha Jamam at 8:00 p.m. Each ritual has three steps: alangaram (decoration), nivedhanam (food offering) and deepa aradanai (waving of lamps) for both Ninra Narayana Perumal, Ranganathar and Arunakamala Mahadevi. During the last step of worship, nagaswaram (pipe instrument) and tavil (percussion instrument) are played, religious instructions in the Vedas (sacred text) are recited by priests, and worshippers prostrate themselves in front of the temple mast. There are weekly, monthly and fortnightly rituals performed in the temple.
The Vaikasi Vasanthothsavam, Pillai Lokacharyar festival and Kurathazhwar festival, each celebrated for ten days, are the most prominent festivals of the temple, and for the surrounding villages. Vaikasi Vasanthothsavam is celebrated during the Tamil month of Vaikasi (May–June) when devotees pull the chariot round the streets of Thiruthangal. Verses from Nalayira Divya Prabandham are recited by a group of temple priests amidst music with nadaswaram (pipe instrument) and tavil (percussion instrument). The other major festivals celebrated are Srijayanthi Uriyadi, Pavithrotsavam, Garudotsavam, Navarathri, Karthigai, Thirumangai Azhwar day, Vaikunta Ekadasi and Kalyana Utsavam. During Chitra Pournami, the festival image has a holy dip in Arjun river, decorated and mounted on a horse mount and taken around ten villages around Thiruthangal. On the fifth day of Aadi Pooram, the festival image is brought to Garuda mount and taken to Srivilliputhur Divya Desam along with four other temples.
Sthlapuranam :
This sthala perumal, travels like a cool breeze into the hearts of his bhaktas and takes out their sorrow and there by making them happy. Since, the perumal has the character (Thanmai) of the cool breeze and air, this sthalam is called as “Thiruthankaal“.
The Moolavar, Nindra Narayanan is found in Nindra Kolam and towards his right side, separate sannadhis for periya pirattiyaar who is called as “Anna Nayaki”.
Neela devi also named as “Aanandha Nayaki” and towards the Moolavar’s left side is Bhoomi Pirattiyaar, also named as “Amirutha Nayaki” and Jambhavathi are found and giving their darshan to the bhaktas.
All the statues (Moolavar and Thaayar, except Sengamala thayar) are painted and because of this, they are not done with the thirumanjanam. Only, Sengamala thayar is done with the Thirumanjanam only with the oil.
Manmadhan, who is the son of Thirumaal, Sri Vishnu, was made into ash by Lord Shiva and in Krishna Avatar, he was born in the name of Pradhyumnan, as the son of Sri Krishnar. His son is Anirudhan.
Ushai, who was the daughter of Baanasuran, loved the grandson of Sri Krishnar, Anirudhan. But, he has seen him only in her dream. So she asked her friend how to get him. Her friend, Chitralekha got some photos painted and one of the photos, Anirudhan was found and identified by Ushai. Chitralekha, who knows magic, took away Anirudhan, when he was sleeping in his cot. On knowing this, Anirudhan was jailed by Baanasuran. After hearing his Grandson was jailed, Sri Krishnar fought along with Baanasuran and made Anirudhan out of prison and was married to Ushai. This is one of the oldest stories told about this sthalam.
Another story about this sthalam is also said and it is related to Lakshmanan, brother of Sri Ramar.
Chandrakethu, who was the son of Lakshmanan, had the fast on Ekadasi and he took his oil bath before the Dhuvadesi came. As a result of this, he became a puli (tiger) and when he came to this Lakshmanan worshipped this sthala perumal and finally got his mukthi.
Periya Pirattiyaar did a strong tapas against Sriman Narayanan. On becoming happy and fully satisfied on her tapas, Sriman Narayanan gave him the Varam that she will become the hamsam of Annapoorani by offering food and shelter to the people of this entire world and said she is the combined and total structure of all the other naayakis – Aanandha Nayaki, Sridevi, Neeladevi and Amirutha Nayaki. And as further to this, the sthalam will be named as “Sripuram” and these are the Varam (Which is given as the prize who satisfies the perumal) given for Sengamala Thayar. Since, Thirumagal stayed in this sthalam and did the tapas, this sthalam is named as “Thiru thangal”. (Thangal means the place of stay).
This sthala thayar is also named as Jaambhavathi. She was the daughter of the Great Vishnu bhaktas, Jaambhavan who had a great love and bhakti towards Sriman Narayanan. Once in Ramayana time, he wanted to hug SriRamar but Sri Ramar didn't allow him to do so. But, he gave him a promise that in the Krishna Avathar, he can catch hold of him and will be given in Ramavtar, Jambavan in Krishnavtar, came towards Krishna to steal the Siyamanthaka mani, for which they bought for 58 days. In Vaamanavathar, he asked Sri Vishnu that he should be killed only by his weapon, Chakkaram. As a result of this, he was killed on the 28th day and at that time, Sri Krishnar made him remember his past. Jaambhavan was so happy that he was killed by a great person, who takes care of the entire world and asked for final help from Sri Emperumaan that he should marry her only daughter, Jaambhavathi. As his final wish, the Perumal married, Jaambhavathi.
Specials:
The one more feature of this sthalam is the Garudan. Garudalwar is found along with the snake in his left hand and Amudha Kalasam in his hand and giving his seva and other two hands are folded and he is found along with 4 hands.
Another speciality is the Thaayar is found in standing posture facing her thirumugam along the East direction. In all the sthalams, the thaayar is found only in sitting position, but only in this sthalam, she is found in standing position, which is said to be one of the specialities of this temple.
Moolavar and Thaayar:
The Moolvar of this temple is Sri Nindra Narayanan. Also called as “Thiruthankaal appan”. Moolavar in Nindra thirukkolam facing his thirumagan along the East direction. Prathyaksham for Salliya pandiyan, Puli, Sri Vallavan and Sridevi pirattiyaar.
Thaayar: The thayar of this temple is Sri Sengamala thayar. She has her own separate sannadhi. Also named as Annanayaki, Amiruthanayaki, Aanandhanayaki and Jambhavathi.
Utsavar: The Utsavar of this Divyadesam is Thiruthan Kaalappan and is found in Nindra thirukkolam.
Mangalasasanam:
Bhoodathalwar – 1 Pasuram
Thirumangai Alwar – 4 Paasurams
Total – 5 Paasurams.
Pushkarani:
Papa Vinaasa Theertham. It is said that people who take bath in this theertham can attain moksha after their death.
Vimanam:
Devachandra Vimaanam.