This is perhaps the most well-known of the Indian festivals: it is celebrated throughout India, as well as in Indian communities throughout the diaspora. It usually takes place eighteen days after Dusshera. It is colloquially known as the “festival of lights”, for the common practice is to light small oil lamps (called diyas) and place them around the home, in courtyards, verandahs, and gardens, as well as on roof-tops and outer walls. In urban areas, especially, candles are substituted for diyas; and among the nouveau riche, neon lights are made to substitute for candles. The celebration of the festival is invariably accompanied by the exchange of sweets and the explosion of fireworks. As with other Indian festivals, Diwali signifies many different things to people across the country.