Tirumular was a Tamil Shaivite mystic and writer who was regarded as one of the 18 Siddhars and sixty-three Nayanmars. The Tirumantiram, also known as the Tirumanthiram, Tirumandhiram, and so on, was his primary work. which comprises of north of 3000 refrains, frames a piece of the vital text of the Tamil Shaiva Siddhanta, the Tirumurai. Because his work makes reference to so many currents of religious thought, the dates that various scholars assign to Tirumular are frequently used to anchor the relative chronology of other Tamil and Sanskrit literature. The dates of Tirumular's life are contentious. According to verse 74 of the Tirumantiram, Tirumular lived for seven yugams before writing the document. As a result, some people tend to place his work well before the Common Era. However, the scholar and lexicographer S. Vaiyapuripillai suggested that Tirumular could not be placed earlier because he appears to refer to the Tevaram hymns of Sambandar, Appar, and Sundarar, uses "very late words," and mentions weekdays. He also said that Tirumular probably belonged to the beginning of the eighth century CE