The Nāgas would be the followers of Virūpākṣa (Pāli: Virūpakkha), one of many 4 Heavenly Kings who guards the western course. They work as guards on Mount Sumeru, guarding the dēvas of Trāyastriṃśa from attacks by the asuras. At the guts of your Naga Empire’s cultural id was serpent worship. https://128.199.208.170/