Kolkata Biryani is a unique variation of biryani that originated in the city of Kolkata, India. It is made with fragrant basmati rice, succulent meat (usually chicken or mutton), and a special blend of spices that includes cinnamon, cloves, and nutmeg. What sets Kolkata Biryani apart is the addition of boiled eggs and potatoes, which add a unique flavor and texture to the dish.