The Nanda Deepam is usually made in different regions of the Indian subcontinent, where it holds religious and cultural significance. The creation of Nanda Deepam involves talented artisans and craftsmen who specialize in working with elements such as copper, earthen materials, or different alloys. Different parts of India have their specific styles related to this cultural practice. https://giriuk.com/category/puja/traditional-indian-lamps/traditional-lamps/