Diwali celebrations can be made more sustainable by adopting eco-friendly practices. Opt for reusable decorations, such as cloth or paper lanterns, and avoid single-use plastic items. Choose traditional earthen diyas over electric lights to reduce energy consumption. Minimise waste by using biodegradable materials for rangoli and avoid excessive noise and air pollution by limiting the use of firecrackers. Supporting local artisans by purchasing handmade diyas and decorations can also contribute to sustainable celebrations.