He was the only son of His Holiness Siddhar Karuwooraar, the Pathinen Siddhar Peedam XI. He lived more than 180 years (1002 A.D. to 1182 A.D.)
He was the royal priest and the Prime Minister of the Later Chola Empire.
He was the Chancellor of the International University of Thanjavur founded by His father.
He was a great genius, original, sagacious and inventive.
As a warrior, chieftain he was fearless and resolute; he was unrivalled, undefeatable, the unique mightiest Hero of his age. Further, he as a single man fought with a big male elephant and killed it and earned a title 'Thanik Kaliru Vendroye' (தனிக் களிறு வென்றோய்). He made invasions upto Himalayaas, and many voyages in the East and the West of the Indian sub-continent.
He was a hearty royal chieftain and loved royal sports. He took part in chariot race, javeline throw, horse race and archery. It was said that he was compared to the great archer, the Arjuna. But he was forbidden by his father to use the Atthirams. Atthirams are the arrows with unlimited divine powers.
Karuvur Thevar married the daughter of the King Rajendra I and had a son named 'Thirumaalikai Thevar'.
Thirumaalikai Thevar lived more than 96 years (1041 A.D. to 1137 A.D.). His Holiness Thirumaalikai Thevar also served as the Chancellor of the International University of Thanjavur. He made a voyage to 'Nilavu Continent' presently known as Australia and settled there at the age of 96.
After the departure of Thirumaalikai Thevar, Karuwoor Thevar once again had to assume the role of Chancellor of the International University.
He built the Gangaikonda Cholapura Siva Temple, which was planned and built upto the foundation level by his father. He made the collection of the Holy Saiva Literature namely 'The Panniru Thirumuraigal' at the Gangaikonda Cholapuram big temple.
In the year 1137 A.D. he built at Srirangam (Trichy District) the tomb temple of His Holiness Ramanujachariyaar, who was the founder of the Vaishnava cult.
At the age of 180 (1182 A.D.) he left the Chola Kingdom and went to the Himaalayan hills and settled there to fulfil his religious duties.
An ancient book named as "Moovar Thotram" picturises the life history of the above three holy persons vividly.