Chop 2 onion and tomatoes finely

In a mixie jar add coconut chunks, garlic cloves and cumin seeds

Grind to a fine paste

Meanwhile cut yam into small cubes and boil till cooked

In a earthern clay pot add 2 tsp sesame oil

Add few curry leaves

Add onion and saute. Add salt to cook veg.

Add 2 tbsp chilly powder

Add 2 tsp coriander powder

Mix well do not burn

Add tomatoes and cook till mushy

Once tomatoes get cooked well

Add water adjust consistency

Allow to boil well till thick

Add cooked yam

Add ground masala paste

Allow to boil for 2 mins

Switch off. Yam gravy for rice is ready.