1. In a pan put oil ,red chillies ,chana dal,mustard seeds methi seeds.Mix well .
2. Add pepper corns when chana dal gets golden add urad dal,coriander seeds.Cook slowly well to ensure every indgrediant is cooked well.
3. Add tamarind,garlic pieces,hing powder,salt amp; curry leaves to the mixture.Mix well cook it on a low flame.
4. As the entire mixture becomes golden in color switch off the flame.Keep mixing till it has cooled down.
5. Blend the mixture in a blender add salt if required.
6.Idli powder is ready to be smeared on idlis .