Traditional hagiographies like Periya Puranam (13th century CE) and Thiruthondar Thogai (10th century CE) detail his legendary life and services to the Hindu god Shiva.

Pasupathi Nayanar was a learned Brahmin devotee who practised chanting of the Shri Rudram Chamakam, a Vedic hymn dedicated to Rudra (a form of Shiva).

[1] Rudra Pasupathi Nayanar was born in a pious Brahmin family in the small village of Thiruthalayur, now located in Nannilam taluk, Thiruvarur District (17 km south of Mayiladuthurai and on the Nedungadu-Karaikal route via Kollumaangudi).

He used go to the water tank in the early morning and evening and chant Shri Rudram Chamakam hymn with folded hands raised above his head.

[3][4][5] Tamil month Purattasi – Ashvini star is widely celebrated as Guru Puja Day of Rudra Pasupathi Nayanar.