SAPTA-MATRIKAS. By Diti were born to Kasyapa two sons known as Hiranyaksha and Hiranyakasipu. They were respectively killed by Vishnu in his Varaha-avatara and Nrisimha-Avatara. Prahlada,the son of Hiranyakasipu,became a devotee of Vishnu and renounced all concerns of worldly life.
After him Andhakasura began to rule over the Asuras. By piously practicing a long series of austerities,he obtained several boons from Brahma and became very powerful. He then began to cause annoyance to the Devas; and they ran to Kailasas to complain Siva about the troubles caused by the Asura chief. When Siva was listening to their complaint, Andhakasura appeared at Kailasa with a view to carry away Parvathi. Siva thereupon got ready to fight the Asura; he made three well-known snakes Vasuki,Takshaka and Dhananjaya serve as his belt and bracelets. An Asura named Nila, who had secretly planned to kill Siva came out in the meanwhile in the form of an elephant. Nandi came to know of this and informed Virabhadra;and he took the shape of the lion(the natural enemy of the elephant) and attacked and killed Nila. The skin of this elephant was presented by Virabhadra to Siva. It was worn by Siva as his upper garment. Clad with this curious garment and ornamented with the serpents and wielding his powerful Trisula, Siva started out on his expedition against Andhakasura taking with him his army consisting of the Ganas. Vishnu and the other Gods also went with him to offer help. But in the struggle that ensured Vishnu and other Devas had to run away.