How Kulalar and udaiyar is same caste?

Kulalar and Udaiyar are both communities traditionally associated with specific occupations in South India. Kulalars are often linked to the pottery-making trade, while Udaiyars are typically associated with landholding and agricultural practices. Despite their distinct roles, both groups share cultural and social similarities, including customs, rituals, and regional affiliations, which contribute to their classification within the broader caste framework. Additionally, in some areas, they may intermingle socially and economically, reinforcing their connections.