Karunai kizangi fry (Yam fry)

Yam 400 gms chopped (I used a frozen variety)
Mustard seeds 1/2 tsp
Urad dal 1 tsp
Cumin seeds 1 tsp
Fresh Coriander ,4 tbsps chopped
Chili pwdr 1/2 tsp
Coriander pwdr 1/2 tsp
Salt to taste

Put oil in a pan, add mustard,urad dal and cumin, allow it to sizzle. Add yam pieces.sauté.then add chilli-coriander pwdr. Add 1/4 cup water and cover till yam is cooked well.Season with salt. Sprinkle coriander leaves and turn off flame.