Sri Nithyakalyani Udanurai Ezhuttarinadhar temple is located about 5 kms from Kumbakonam town. The Lord is believed to have the powers to bestow good memory, concentration and improved speech power to His devotees. It is believed that Lord Shiva attained this name after he bestowed the great Sage Agasthyar with the rules of Tamil Grammar. Mythology has it that the King in power ordered his accountant Sudanman to submit all accounts at the earliest. Sudanman was at a loss to do this as it was a tedious process. Surrendering to the Lord in despair, it is said that Lord Shiva assumed the human form, completed and submitted all accounts to the king to save His devotee.
It is said that Lord Surya worshipped the Lord in this temple. Innan means Suriyan, hence this place acquired the name "Innan Navambur" and later became Innambur.
The small shops outside the temple premises sell the necessary materials required for conducting a pooja. This also includes a phial of honey. The priest, after performing pooja to the Lord, writes on the devotee's tongue with a flower stem while reciting mantras. It is believed that after receiving such a divine blessing, a person's (child or adult) memory improves, concentration ability increases and any speech impediments are also taken care of.
The Lord here resides with two consorts : Goddess Nithakalyani and Goddess Sugandha Kundhalambigai. Worshipping Goddess Nithyakalyani in this temple especially during the Navratri festival is considered very auspicious.
The nearest town/ railway station to get to Innambur is Kumbakonam from where the temple can be accessed by road. On the way back, devotees can also continue to Swamimalai Sri Murugan temple, Thiruvalanchuzhi which is famous for the 'white' Ganesha who is believed to have been formed out of sea-foam and Patteeswaram Shri Durga Amman, these temples among many others, are quite near from the Innambur temple.