For podi powder- add oil in pan and roast chillies and keep aside.

Same pan fry urad dal,chana dal for 1minutes.on a mixie add urad dal,chana dal,chillies,curry leaves,turmaric,hing and make smooth powder.

Now on a bowl put rava,curd mix it well.as required start adding water.make a smooth batter.now add soda and keep aside for 10minutes.

On a high flame bring enough water to boil in an idli steamer.

Grease your idle plates lightly.

Fill the molds with batter.

When the water begins to bubble and steams up place the stand in the steamer.cover it.

After 10minutes switch off the flame and keep it aside for 2minutes.now remove the idlies.

On a pan put ghee and podi powder.staire it.now add idlies and cover it with podi powder..rava idli podi is rrady to serve.