- Thiruneelakudi Neelakandeswarar Temple is a Hindu temple located at Thanjavur district of Tamil Nadu, India.
- The historical name of Tiruneelakkudi is Thennalakudi .
- The presiding deity is Shiva. He is called Neelakandeswarar. His consort is Oppilamulaiyal.
- It is one of the shrines of the 275 Paadal Petra Sthalams – Shiva Sthalams glorified in the early mediaeval Tevaram poems by Tamil Saivite Nayanar Thirunavukkarasar. Praises of the temple have been sung by Sambandar in the Thevaram. The temple is also associated with the life of Thiruneelakanda Nayanar.
Thala Virutcham: Vilwa – leaves having five petals, Jack tree Theertham :Devi, Markandeya and Brahma theerthams.
- Lord Shiva came to the temple to see the alcoholic poison that emerged when the devas and the asuras were in the limelight. It was the poison to hold his neck to stay in the neck to prevent him from going to the fire.
- Lord is also known as Neelakandeswarar. The image of lingam is about 2 ft (0.61 m) high and has unusual square projections and a rough surface. The ablution performed during the Chithirai festival with gingelly oil is absorbed by the image.
- The Saiva saint Appar is believed to have worshipped and sung praises of the deity here while he was going to Thyagaraja Swamy Temple, Tiruvarur.
- He describes the tortures he faced from his Jain counterparts.
- Sage Mrigandu and his wife used to worship the Lord for a son. For their devotion, the Mechi Lord appeared before them and asked whether they wanted a son full of vices who would live for a thousand years, or whether they wanted a great son who would only live up to 16 years of age.
- Markandeyar, who was born by the grace of God to the Mrigandu couple, became a great devotee of Shiva.
- When he turned 16, his parents told Markandeyer that his life span was 16 years as God had told him.
- While Markandeyar was visiting every Sivasthalam that Lord Shiva could save his life, he came to Tiruneelakudy and worshipped Isaan. He comes here and meditates on Lord Shiva day and night.
- At last the Lord appeared before him. He asks what boon you want. As soon as Markandeyar expressed his wish, Eason gave Markandeyor the boon to be a Chiranjeevi in this temple.
- Thiruneelakudi is one such privileged place.
- Lord Shiva consumed the eternal poison that emerged when the gods and demons begged for nectar from the milky sea.
- The poison stayed on his neck to hold his neck to prevent it from going into the stream. The Lord was also named Neelakandeswarar.
- As per Hindu legend, when the celestial deities Devas and demons Asuras were churning the Ocean of Milk for ambrosia, poison emerged first.
- Shiva consumed the poison, but his wife Parvati held his throat as he was consuming it.
- It is believed that Shiva got the name Neelakanta from then on. Parvati anointed Shiva with oil in this place to relieve Neelankata of his pain.
- The practice of anointing the lingam in the temple continues in modern times where the whole oil is consumed by the image.
- The lingam in the front hall of the central shrine is believed to have been worshipped by Brahma, the Hindu god of creation, to relieve him of the sins committed while coalescing with celestial dancer Urvasi. Markendeya is believed to have worshipped the deity by carrying him in a palanquin to attain long life.