According to the Puranas, the city of Ujjain was called Avantika and was famous for its beauty and its devotional epicenter. medieval Hindu theology, its origin is found in one of the most popular medieval puranas, the Bhagavata Purana. The Samudra manthan episode (Churning of the ocean of milk), is mentioned in the Bhagavata Purana, Vishnu Purana, the Mahabharata, and the Ramayana. The history goes that the Devas had lost their strength by the curse of Durvasa Muni, and to regain it, they approached Lord Brahma and Lord Shiva. Kumbh derives its name from the immortal Pot of Nectar, which the (Devtas) and Demons (Asuras) fought over, described in ancient Vedic scriptures known as the Puranas.