[2] Sri Revana Siddeshwara is considered as a reincarnation of the great Jagadguru Shri Renukacharya who was ordered by Shiva to take incarnation on earth to spread Bhakti among the people.
[1] With the blessings of Lord Shiva, Jagadguru Reṇukacharya (also known as Revaṇaradhya or Revaṇasiddha) was one of the five acharyas who came in the Kali Yuga to teach and preach Virasaiva thathva.
Texts date this legendary saint to the time of the Ramayaṇa since they were the teacher of the nice sage Agastya of Panchavati.
Thus, with the blessings of Lord Shiva, Renuka emerged from the Somashekhara linga close to Hyderabad's Kolli saakshi kshetra, and have become called Revana Siddeshwara.
He also visited Sri Lanka as per Vibhishana's advice to King Ravana, he installed three crores of shivalingas.