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The Astaprashta Parva
The purohita, whose words and meanings are worthy of hearing and whose speech is full of essence, said to the king, "O King, you are worthy of hearing this story." Thus addressing the king, he began to narrate the story of Ravana, whose glory illuminated the ten directions like a radiant Lakshmi.
He said, "In the eastern part of the Dhataki-khanda island, in the Bharat-kshetra, there is a country called Sarasamuccaya, which is like heaven and endowed with the qualities of the earth."
"In its city of Nagapur, there reigned a king named Nardeva. One day, he went to the Ganadhara named Ananta, paid his respects, and listened to the Dharma-katha. He became detached and gave the kingdom to his eldest son, Bhogadeva, and embraced austerity. While practicing austerity, he saw the king of the Vidyadharas, named Chapalavega, and quickly made a decision. When his time came to an end, he renounced the world and became a deva in the Saudharma heaven."
"Now, in the same Bharat-kshetra of Jambudvipa, there is a great mountain called Vijayardha. On its southern slope, there is a city called Meghakuta. In this city, there reigned a Vidyadhara named Sahasragriva, born in the lineage of Vinamika. His brother's son was very strong, and in anger, he drove Sahasragriva out. Sahasragriva then went to Lanka and ruled there for thirty thousand years."
"His son was named Shatagriva. After Sahasragriva, he ruled for twenty-five thousand years. His son, Panchashatagriva, ruled for twenty thousand years after Shatagriva. After Panchashatagriva, there was a son named Pulatsya, who ruled for fifteen thousand years after his father. His wife was named Megha-shri. They had a son named Ravana, who was a deva. His lifespan was fourteen thousand years. After his father, he also began to rule the earth. One day, the lord of Lanka, Ravana, went to the forest with his wife to play and to enjoy the beauty of the Khecharachala."