Peel and cube tapioca into small pieces. Take it in a small sauce pan, add salt to it and cover it with water. Cook till tender. Drain and set aside.
Now cook mutton, take mutton in a pressure cooker, add salt, turmeric powder and water. cover and cook for 6 whistle, simmer for 15 mins. Turn off the heat and let the steam escape all by itself. Open the cooker and set aside.
Now in a kadai, add in coconut and dry roast till golden. Set aside.
Now in the same pan, add in oil and fry the whole spices.
Now add in onions and cook till golden.
Add in ginger garlic paste and cook for 2 mins.
Add in spice powders and mix well.
Now add in cooked mutton and mix well. bring it to a boil and simmer and 10 mins or so.
Now add in cooked tapioca and mix well. cook till it thickens and simmer for 10 more mins.
Now add in roasted coconut and coriander leaves. Mix well.