Sangam Era Rulers and Dynasties

Only pair 2 is not correctly matched, making it the required answer. Udiyanjeral (also known as Udiyanjeral Nathan) was a prominent early king of the Chera dynasty, not the Chola dynasty. Pairs 1 and 3 are correctly matched: Cheran Senguttuvan is the famous Chera monarch celebrated in the epic Silappatikaram, and Nedunjeliyan is the renowned Pandya king associated with the battle of Talaiyalanganam and early Madurai court traditions.