Clean and cut the tapioca and keep all the ingredients ready.
Cook tapioca in water by adding turmeric powder and salt as required. When the tapioca is well cooked, drain that water and keep aside.
Heat oil in a clay pot and splutter mustard seeds and add chopped shallots into it.
When it turns light brown in colour add dried red chilly, chilly powder and coriander powder. Keep the flame in low flame while adding masala powders. Now add 1 &1/2 cup water and bring it to boil.
When it starts boiling, add cooked tapioca and mash it well with a spoon. Mix it well.
Grind the coconut pieces by adding little water to make a smooth paste and pour it into the tapioca nixture.
Add curry leaves and cook again for a while. Check the salt and add if needed.
Delicious traditional styled Kappa Curry is ready now.