Dry roast the cloves, cinnamon stick, cumin seeds, fennel, pepper corns, whole dry red chilies, coriander seeds and cashew nuts.
Make this into a powder with dry grinder or in a stone pestle.
Add this ground powder, salt and the ginger garlic paste with the mutton and marinate for 1 hour.
Heat the oil in a pressure cooker and add the onions. Fry the onions till they translucent.
Once the onions are translucent, add the marinated mutton with turmeric powder and saute for sometime till all the spices are absorbed in the mutton about 5-6 minutes.
Now add the chopped tomatoes. Stir well.
Add a glass of water and cook till the mutton is tender. Allow the steam to escape from pressure cooker. Once the steam is released, adjust the water to the desired quantity and cook again on low flame till oil starts separating and begins to float.