Clean and wash the mutton bones well.
Take a pressure cooker, into it add the mutton with bones and olive oil.
Add salt as per taste, turmeric powder, ginger garlic paste, sliced onions, green chilies, coriander leaves, black pepper corns.
Mix well and roast for 10-12 minutes.
Keep stirring in between.
The color of the mutton should change.
Add water and give a mix.
Check for salt and add if required.
Cover the lid with a pressure cooker.
Pressure cook the mutton with bones until tender.
Switch off the flame after 5-6 whistles or after it is tenderized well.
Reduce the steam.
Remove the lid and cook for 5 minutes on low flame.
Add black pepper powder.
Garnish with chopped coriander leaves and serve hot.