Nannilam is a traditional agricultural practice in India, particularly in the Tamil Nadu region. It involves the cultivation of crops in a sustainable manner, focusing on maintaining soil health and conserving water. Farmers often use organic methods, such as composting and crop rotation, to enhance productivity while minimizing environmental impact. This practice is part of a broader movement towards sustainable farming, which aims to reduce reliance on chemical fertilizers and pesticides. By promoting biodiversity and ecological balance, Nannilam helps ensure food security and supports the livelihoods of local farmers, contributing to the overall health of the ecosystem.