This dish, often served during festivals, is characterized by its layered composition and rich, aromatic flavors. What is it?

1. It features rice cooked with spices, vegetables, and sometimes meat or seafood.
2. The dish is traditionally prepared in a large, heavy-bottomed pot.
3. It's often garnished with fried onions, fresh herbs, and nuts.
4. Different regions in India have their own distinct variations.