Tomb heads called 'Kadakallu' at the age of Great Stone age in Kerala. Below this structure there will be nannangadies, big earthen pot which contains the body with their personal tools also i it. It was used by, Kings, priests etc at Stone age. Picture shows the Kodakallu at AR nagar, which is lays beneath Calicut Airport Hwy. Hwy Dept. is about to demolish the site for increasing the road width.