When King Parikshith met his end, his son Janamejaya was hardly a lad of eleven years and was declared as the next King. Guru Kripacharya trained him in the Science of Archery, Administration and Dharmasastra. He was married to Vapustama the daughter of King of Kasi and carried on with pious activities.
Meanwhile a Sage Uttanka approached Janamejaya and provoked him to take revenge on his father’s killer Taksha and perform Sarpa Yagna (Sacrifice of Serpents) and command Taksha into the Fire Pit (Homa Kunda) and Sacrifice all the Serpents in the process. Sage Uttanka told the King that his father could not go to heaven because of snake bite. Convinced thus, the King ordered that theYagna be arranged. Thousands of snakes were burnt off and Taksha was so afraid of his life that he sought refuge from Indra. But, so revengeful were Janamejaya and Sage Uttanka that they were prepared to command not only Taksha but even Indra to Sarpa Yajna and haul them into the Fire Pit! Taksha thus approached Sage Asita to call on the King and to refrain from proceeding further in the Sacrifice as thousands of innocent Snakes were burnt off, for the sake of Taksha. Veda Vyasa explained the Episode of Sage Asita and King Ruru to the King.
In the olden days, there was a Sage Jaratkratu who was practising high devotion to Devi Bhagavati in a forest. He had a vision of his dead father and forefathers in a cave who asked him to marry and suggested an eligible woman named Jarat Karu, who was the sister of Vasuki. Meanwhile the co-wives of Sage Kasyapa, viz. Kadru and Vinita had an argument as to what was the colour of the horses of the Sun God’s chariot. Vinita guessed the color as white but Kadru had a bet that the colour was black. It was agreed that whoever lost the bet would have to carry the other on her back always while going to places. Kadru asked her sons to colour the horses black to win the bet. While some of her sons obeyed her but others did not. Kadru cursed those who did not comply be burnt off in a Fire pit and Vinita virtually became Kadru’s slave. Vinita’s son ‘Garuda’ the Carrier of Maha Vishnu, asked for the cause of her sorrow and she narrated as to what happened. Out of his affection for his mother, Garuda approached Kadru to pardon his mother and Kadru agreed provided that Garuda could bring Amrit (nectar) from the custody of Vaikuntha. Garuda was bent on relieving his mother’s curse and fetched a jug of Nector from Vaikuntha. Kadru was delighted and released Vinita. All the family members and friends of Kadru were invited and asked to clean up themselves before taking spoonfuls of Amrit. But Indra quietly stole away the jug of Amrit. The invitees of Kadru returned from their baths and found that the jug was missing. They were disappointed but tried their best to lick any drops from out of the jar that might have spilt on the grass (Kusa) and as they licked their tongues were cut and hence were known as ‘dvi-jihvas’ or two tongued ever since. Vasuki and others who were troubled by Kadru approached Lord Brahma and complained against Kadru, the mother of snakes. He blessed them and said that the younger sister of Vasuki, Jarat Karu, should be proposed to wed Sage Jaratkaru. But the Sage was highly short tempered and the bride should be very obedient and trustworthy and the couple would beget a child who would enlighten, control and discipline the whole community of snakes and lighten the burden of their over-haughtiness to the world. That was why, Sage Asita prevailed upon King Janamejaya to stop the unique Sarpa Yagna and Veda Vyasa too approved of Sage Asita’s request.
Maharshi Vyasa had suggested that instead of the revenge-oriented Sarpa Yagna, he should rarher build a spacious Temple dedicated to Devi Bhagavati and also perform Devi Maha Yagna and such other Spiritual activities to release the soul of late King Parikshith and relieve the curse of the Brahmana boy.