The below-mentioned ways will help you know how to properly dispose of the materials used in the Lakshmi Puja after the festival. - Keep in mind to purchase only natural materials for Diwali puja. - You may utilize the clay of idols for gardening. - Always choose to reuse the idols to prevent pollution and protect the environment, or donate the idols in a sacred place or a temple. - You may also dig the ground and place all the puja material to let it decompose without contaminating the soil.