 Subsequently the region came to be known as Kosal Kingdom in the early historical period.With the rise of the illustrious and mighty Nala rulers in the 3rd century A.D. Maraguda valley emerged as the classic capital city of Kosal and thrived for centuries with prosperity.The valley was fortunate in having a wonderful landscape of hills and dales quite befitting to nourish a rich civilisation as revealed by recent excavations corroborated by Hiuen Tsang's travel account.