Heat a kadai or wok. Add oil.
After oil gets heated, add mustard seeds and let them flutter.
Then add, cumin seeds.
Add asafoetida and torn dry red chilies and mix.
Now add chopped taro root, grated coconut, dry kokum petals, turmeric powder, red chili powder and ½ cup water. Mix well.
Close the lid of kadai and keep the gas on low flame.
After 10 minutes, open the kadai and check if the taro root is cooked.
If not, add remaining water and mix. Cook for further 10 minutes.
Check if taro root is cooked. Add salt to taste.
Garnish with chopped coriander leaves.