Tripurasura

Tripurasura (Sanskrit: त्रिपुरासुर) is a collective name given to the three demons Vidyunmali, Tarakaksha and Viryavana, who were sons of the demon Tarakasur. These three began to perform tapasya. For a hundred years they meditated standing only on one leg. For a thousand more years they lived on air and meditated. They stood on their heads and meditated in this posture for yet another thousand years.

Brahma was pleased at this difficult tapasya. He appeared before them and said, "What boon do you want?" "Make us immortal", answered Tarakasura’s sons. "I can’t make you immortal", replied Brahma. "I don’t have the power. Ask for something else instead". "Very well", then, said Viyunamali, Tarakaksha and Viryavana. "Grant us the following: Let three forts be made. The first will be of gold, the second of silver and the third of iron. We will live in these forts for a thousand years. These forts built in different worlds shall align once in every 1000 years. This combined fort will be called Tripura. And if anyone can then destroy Tripura with only a single arrow that shall be the death destined for us".

This rather unusual boon Brahma granted. There was a danava named Maya who was very good at building work. Brahma asked him to build the forts. The golden fort was built in heaven, the silver one in the sky and the iron one on earth. Tarakaksha got the golden fort, Viryavana the silver one and Vidyunmali the iron one. Each of the forts was a big as a city and had many palaces and vimanas (space vehicles) inside.

The demons populated the three forts and began to flourish. The demigods did not like this at all. They first went to Brahma, but Brahma said he could not help them. After all, the demons had got Tripura thanks to his boon. The gods then went to Shiva for help. But Shiva said that the demons were doing nothing wrong. As long as that was the case, he did not see why the demigods were so bothered. They next went to Vishnu, who suggested that if the problem was that the demons were doing nothing wrong, then the solution was to persuade them to become sinners.

Out of his powers Vishnu created a man. This man’s head was shaven, his clothes were faded and he carried a wooden water-pot in his hands. He covered his mouth with a piece of cloth and approached Vishnu. "What are my orders?" he asked Vishnu.

"Let me explain to you why you have been created", replied Vishnu. "I will teach you a religion that is completely against the Vedas. You will then get the impression that there is no svarga (heaven) and no naraka (hell) and that both heaven and hell are on earth. You will not believe that rewards and punishments for deeds committed on earth are meted out after death. Go to Tripura and teach the demons this religion, by which they will be dislodged from the righteous path. Then we will do something about Tripura".

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Wikipedia