Wash and soak urad dal for 10-15 minutes.
Once soaked, take all the water out and let it sit on a paper towel for couple of minutes to get rid as much water possible.
Heat up 2 tbsp of oil in a wide pan.
Once warm, carefully add urad dal to it and saute on medium heat until they turn orange/light brown in color.
Add mustard seeds to the pan and wait for it to pop.
Add pinch of asafetida and curry leaves.
Immediately add leftover idli pieces and mix well.
Add salt and red chili powder. Mix well. Sprinkle 1-2 tbsp of water if the idli is too dry.
Let idli pieces crisp up on medium heat for few minutes.
Serve it with coconut chutney or tomato ketchup with side of chai!