Tripurasura is a demon from Hindu mythology, known for his immense power and arrogance. He was the ruler of three cities, or "puras," made of gold, silver, and iron, which floated in the sky. His strength and tyranny led to widespread suffering among the gods and humans. To defeat Tripurasura, the god Shiva used a celestial arrow, targeting the three cities simultaneously. This act not only vanquished the demon but also restored balance and peace to the universe. The story symbolizes the triumph of good over evil and is celebrated in various Hindu traditions.