The festival in India that involves elaborate rangoli designs made from colored powders is Diwali. This Festival of Lights celebrates the triumph of good over evil and the arrival of autumn. During Diwali, families create beautiful rangoli patterns at their doorsteps and in homes, welcoming guests and spirits. These intricate designs, often made from colored powders, rice, or flower petals, showcase artistic creativity and cultural heritage. Diwali also features lighting oil lamps, conducting prayers, and sharing sweets, making it a joyous occasion that fosters family and community bonds while celebrating light, knowledge, and prosperity.