One of the most useful Indian inventions that the world barely gives importance: IDLY

Idly is steam cooked rice cakes that is eaten with chutney or an assortment of currys.It is a beautiful mixture of taste and health. It's nutritional value is so high that it is recommended as one of the wholesome food by the World Health Organization.

It is rich in Carbs, Proteins, Enzymes, Fats, Amino Acids and Fiber and has Zero Saturated Fat and Cholestrol. It is easily digestible and can be eaten by any age group, even with the ones that don't have teeth.
It is a wonderful food to include in your diet. And it's the most felicitous food to have when you are traveling so as to not fall sick. Have a healthy and tasty cuisine



For people who are speculating that the origin of idly might be some other place, here is the wikipedia account on it

A precursor of the modern idli is mentioned in several ancient Indian works. A 920 CE Kannada language work by 

wikipedia.org

Shivakotiacharya mentions "iddalige", prepared only from an urad dal (black lentil) batter. Chavundaraya II, the author of the earliest available Kannada encyclopaedia, Lokopakara (c. 1025 CE), describes the preparation of this food by soaking urad dal (black gram) in buttermilk, ground to a fine paste, and mixed with the clear water of curd and spices. The Western Chalukya king and scholar Someshwara III, reigning in the area now called Karnataka, included an idli recipe in his encyclopedia,Manasollasa (1130 CE). This Sanskrit-language work describes the food asiddarika. The food prepared using this recipe is now called uddina idli in Karnataka.