The jyotirlinga enshrined in the temple of Nagnath is known as Nageshwar Mahadev and attracts thousands of pilgrims all round the year. This powerful jyotirlinga symbolizes protection from all poisons and those who pray to the Nageshwar Linga therefore become poison free. This Sivalingam is facing South, with the Gomugam facing East. There is a story for this position. A devotee by name Naamdev was singing bhajans in front of the Lord. Other devotees asked him to stand aside and not hide the Lord. To this Naamdev asked them to suggest one direction in which the Lord does not exist, so that he can stand there. The enraged devotees carried him and left him on the southside. To their astonishment, they found that the Linga was now facing South with the Gomugam facing east.

According to the Shiv Purana there was a she-demon by the name Daruka in ancient times. Due to Parvati’s blessings she had turned proud and obstinate. A mighty demon named Daruk was her husband. He had collected a huge army of demons and had started harassing all the innocent people there. He would destroy all the religious rituals performed there. On the western bank of the ocean there was a forest which was abundant with all the good things. The forest was spread across 192 kms. Wherever Daruka would go, the forest with all its good things would go along with her.

Goddess Parvati had appointed Daruka as the caretaker of the forest. Daruka and her husband Daruk both would stay there and terrify people there. People tired of this terror went to Maharishi Aurva. Aurva for the security of the refugees cursed the demons that if they would harass people or destroy religious rituals they would instantly die. When the gods came to know about this they attacked the demons. Even though the demons would kill the gods they became frightened because, they could get killed because of the curse of the sage. If they did not kill they would get defeated. Seeing the state of the demons Daruka said because of the blessing of Bhavani I can take this forest whereever I want. She went and entered the sea. Now all the demons started residing in the sea and started harassing creatures there also.

Once many a boats having many people seated came there. All the demons caught hold of the people and put them in prison. Amongst the prisoners there was a prisoner by the named Supriya. He was a great devotee of Lord Shiva. He advised all prisoners to recite the mantra ‘AUM NAMAHA SHIVAYA.’ When Daruk came to know about this he ran to kill Supriya. Supriya called out to Lord Shiva the Saviour. Instantly Lord Shiva appeared through a small hole and a beautiful temple with wall was formed. In the middle of the temple a lustrous Jyotirlinga was installed. Lord Shiva destroyed all the demons and saved the life of Supriya. Here Demons Daruka started praying to Goddess Parvati for mercy. The Goddess was pleased with the devotion and blesses her. In this way Lord Shiva stays and resides there eternally by the name of Nageshwar and Goddess Parvati by the Nageshwari. According to the Shiv Purana who ever with devotion reads the birth and greatness of this Jyotirlinga will achieve all material happiness and shall get divine status in the end.