Vadalur, Cuddalore, Tamil Nadu, India
The Sathya Gnana Sabai (Hall of True Knowledge) at Vadalur in Cuddalore district, Tamil Nadu, was founded by Ramalinga Adigalar, popularly known as Vallalar, the 19th-century saint of the Samarasa Suddha Sanmarga movement (The Hindu). Worship here is formless: a lighted lamp is kept in the sanctum, and the Madras High Court has upheld that no idol worship is to be performed at the centre, the Times of India reported.
Faith & Tradition
On Thai Poosam (January–February), seven screens of different colours are removed one after another to reveal the holy lamp in the 'Jyothi Darshan', which draws thousands of devotees from Tamil Nadu and Puducherry (The Hindu). Dinamalar records that Vallalar began the Jyothi Darshan on Thai Poosam in 1872.
Vallalar established the Sathya Dharma Salai on 23 May 1867 to feed the poor; the hearth he lit is said never to have been extinguished, and free meals are still served from it (Dinamalar; The Hindu).
Heritage
In 2010 the Madras High Court dismissed a hereditary priest's petition to continue linga worship at the Sabai, ruling that worship should remain formless in keeping with Vallalar's directions of 1872 (Times of India).
Plan Your Visit
Thai Poosam draws very large crowds and heavy traffic around Vadalur; plan travel early.
Timings and arrangements change with seasons and festivals. Confirm current details with the temple administration before travelling. Last reviewed 6 October 2026.
Sacred Calendar
Seven screens are removed to reveal the sacred lamp (The Hindu; Dinamalar).
Location
Vadalur is in Cuddalore district, Tamil Nadu; special buses run at Thai Poosam (The Hindu).
Location: Vadalur, Cuddalore, Tamil Nadu, India 607303
More in Hindu temples in Tamil Nadu
Questions
At Vadalur in Cuddalore district, Tamil Nadu.
Saint Ramalinga Adigalar, known as Vallalar.
On Thai Poosam, seven coloured screens are removed to reveal a sacred lamp.
No; worship is formless, as the Madras High Court has upheld.
A free kitchen Vallalar started in 1867, whose hearth is kept burning.
Further reading: Sathya Gnana Sabai (Vallalar Deiva Nilayam), Vadalur on Wikipedia (CC BY-SA 4.0).
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