Festival waste poses significant environmental risks, including water pollution, air quality deterioration, and waste management challenges. Idol immersions in natural water bodies, such as lakes and rivers, have been shown to reduce dissolved oxygen levels and increase harmful substances like sulphates and heavy metals, endangering aquatic life. Diwali celebrations contribute to air pollution, with Delhi experiencing 'very poor' air quality levels during the festival in recent years. Additionally, improper disposal of floral and plastic waste exacerbates pollution and hinders recycling efforts.