What is "tiruththanka"

Tooppul, or Tiruththanka (also called Deepaprakasa Perumal Temple) located in Kanchipuram in the South Indian state of Tamil Nadu, is dedicated to the Hindu god Vishnu. Constructed in the Dravidian style of architecture, the temple is glorified in the Divya Prabandha, the early medieval Tamil canon of the Azhwar saints from the 6th–9th centuries AD. It is one of the 108 Divyadesam dedicated to Vishnu, who is worshipped as Deepa Prakasa Perumal and his consort Lakshmi as Maragathavalli.