Biryani and Pulao are quite different from each other. 1. In biryani, the rice is cooked separately and then add to the spices. While in pulao, the rice is cooked along with the vegetables and spices. 2. Pulao is a mild dish with simple spices used mainly for aroma. Biryani, on the other hand, is spicy and requires many spices to get the perfect taste.