Add ginger, carrot, coriander leaves and green chillies.
Add curd and salt and mix well.
Add enough water to make it a thick batter.
Prepare the idli steamer and grease the idli plates.
Add the baking soda to the batter, give a nice mix until it becomes fluffy and pour it into idli moulds immediately.
Steam cook for 10-12 minutes or until a tooth pick inserted comes out clean.
Serve them hot with chutney of your choice.
Notes
Note: Do not leave the batter after mixing. The rava will soak up the liquid and the batter would turn thick. In case the batter goes thick, add water to loosen the texture before pouring into the idli moulds.