In a pan heat oil and add channa dhal.
When it starts browning, add in cashew nuts.
When they are golden add mustard seeds.
When they crackle add green chillies and curry leaves.
Add the millet rava and sauté on medium flame until golden and aromatic.
Remove from flame and add grated carrot and salt.
Get your idli steamer ready by the time.
Grease the plates and keep it ready.
Add buttermilk and mix well to form a thick batter.
Finally add in the baking soda, mix well and pour into idli moulds.
Steam cook for 10 - 13 minutes or until the idlis are firm to touch.
Remove from the steamer and let them cool completely before removing from the mould.
Use a spatula or a spoon to remove the idlis from the mould.
Enjoy with a chutney of your choice.