Take mutton in a bowl, add in salt and turmeric powder and mix well.
Leave this to marinate for 15 mins.
Now take a blender, add in all grinding ingredients and make it into a puree by adding some water.
Add this puree to the mutton and mix well. Wash the blender with 1/4 cup of water and pour that over the mutton as well.
Transfer this to a pressure cooker and cook it for 3 whistle, simmer it for 20 mins. Turn the heat off and let the pressure go all by itself.
Open the pressure cooker and heat again, dry out the mutton.
Once it is dried, heat coconut oil in a kadai. Add a handful of curry leaves in it. Add in the dried mutton and toss well for 5 mins till it is well roasted.
Add in gram dal powder and toss again for 10 mins.
Once the mutton turn golden and well roasted, turn off the heat and serve.