Mix Rava (roasted) with sour curds thoroughly so that no lumps are formed.
Fry seasonings in a little oil along with chopped onions for about 2-3 minutes.
Pour curd, rava mixture, salt chopped chilies, coriander leaves, and soda.
Put in the grated carrots and the broken cashews. Mix well and immediately pour into oil-greased Idli plates and steam for 10 minutes or until it is cooked.
To get the best Rava idlis, heat the pressure cooker only with water for a couple of minutes and then keep the Idli plates inside it.
Serve hot with coconut or tomato chutney.