Thirumoolar or Thirumoola Naayanaar is one of the 63 Naayanmaars praised by Swamy Sekkizhaar and one of the celebrated 18 Siddhas. He is one of the enlightened Yogi. The history of Thirumoolar was briefly given by Nambiyaandar Nambi in his book Thirutthondar Thiruvanthaathi. Thirumoolar’s time is about seven thousand years ago. His blessed book is the Thirumanthiram which contains 3000 Songs. Thirumanthiram has been categorized as the 10th Book of the 12 Thiru Murai (Respected Ways) of Saiva Tradition.