Rooftop view in Delhi of the Diwali fireworks. Also acclaimed as the Festival of Lights, Diwali is associated with lights, sweets, and liveliness; especially lights. As, it is celebrated on the new-moon (Amavasya) night, lights and fireworks have a significant role to play in this festival. This is why, when we heard the name Diwali, the first impression that flashes through our minds is of multicolored and impressive fireworks, sprinkling various sorts of bright colored lights in the night sky. Some people say it's like a was zone and the smoke can also be very bad!