Location
Kodai has been put on the anthropological map by the presence of dolmens and kistavens, dwelling and burial places from the Stone and Iron Ages. This dates some if these stone structures as early as 5000 Bc. Sadly, many if them have been destroyed, both willfully as well as through neglect. Two of the more intact sites are Dolmen Circle on the ghat road not far from Periakulam and the one two kilometers past Pannaikadu village, on the highest point before descending to Pattiveerampatti.