Naan is found in different variations in distinct parts of India and usually refers to a specific kind of thick flatbread which is leavened with yeast to form a soft and chewy bread. What gives naan its authentic taste is the fact that it is cooked in a tandoor which also summarizes the famous tandoori cooking style. This is one of the ways which distinguishes naan from regular roti which is also a flatbread made with whole wheat flour and cooked on an iron griddle called tava. A dash of butter spread on top of naan gives it an enhanced flavor that melts smoothly on the tongue. Naan enjoys a special position in the Indian cuisine as it can be used with a variety of food items and to scoop gravies or can be served stuffed with a filling. https://indiamap.com/food/bread/naan