Kandaloorch Chalai has been the center stage of many controversies and misunderstandings. I have written an article in PS Souvenir titled "kanthaloor chalai Oru Meelparvai" summarizing the subject.
Venkat: The only edict apart from RR's meikeerthi is the Rajendra chola's damaged inscription just behind the sanctum proper of Kanthaloor Mahadeva temple in Trivandrum