Perambalur District introduces Chettikulam as Kadambavanam, a grove where a northbound trader stopped at dusk. Resting in a banyan, he saw a midnight flash take the form of a Shiva lingam amid divine worship, then carried the account to Parantaka Chola at Uraiyur.
A guide appears with sugarcane
Parantaka and his guest Kulasekara Pandya search the grove with the trader. An old man holding sugarcane reveals the lingam and disappears as light towards the east, where the rulers see Murugan upon the hill. The district tradition credits Kulasekara with building the paired shrines.
Why the cane remains
The hill deity is described with an eleven-knotted sugarcane. Another strand says Kamakshi gave it after Dhandayuthapani defeated a giant. The plant returns in family vows, when devotees may carry a child in a sugarcane cradle after a fulfilled prayer.
Tradition is not a construction certificate
The story explains why two shrines, a hill and sugarcane belong together in local memory. It does not date every visible wall. Repeat it as temple tradition, then let inscriptions, fabric and living worship answer different questions.