Maha Annabhishekam is a grand and unique ritual performed annually in Shiva temples, especially in Tamil Nadu, as an expression of devotion and gratitude. During this ceremony, the Shiva Lingam is adorned and covered entirely with cooked rice, symbolizing abundance and prosperity. The rice is often shaped artistically and accompanied by various offerings, such as fruits, vegetables, and sacred herbs, creating a visually stunning and spiritually uplifting atmosphere.

Devotees believe that participating in or witnessing this ritual brings blessings of prosperity, health, and spiritual growth. Maha Annabhishekam is typically performed during the Tamil month of Aippasi (October-November), coinciding with the full moon day. The ritual reflects the deep connection between devotion, nature's bounty, and the idea of sharing food as a divine blessing, emphasizing the significance of generosity and gratitude in spiritual practice.