Nanda Deepam lamp is commonly made in different regions of India, where it holds cultural and spiritual significance. The production of Nanda Deepam involves talented artisans and craftsmen who are adept in working with materials such as copper, earthen materials, or other metals. Distinct regions of India have their unique styles related to this craft. https://giriuk.com/category/puja/traditional-indian-lamps/traditional-lamps/