Kolkata Biryani is a unique variation of biryani that originated in the city of Kolkata (formerly known as Calcutta) in India. It is influenced by the flavors of Mughlai and Awadhi cuisines. The key ingredients in this biryani are basmati rice, meat (usually chicken or mutton), potatoes, and a blend of spices. The meat is marinated in yogurt and spices, then cooked with partially cooked rice in layers. The biryani is then cooked on low heat, allowing the flavors to meld together. It is often garnished with fried onions, boiled eggs, and a sprinkle of biryani masala.