Take a pan or a wok, add oil and heat it.
Add sliced onions into it and saute for few minutes until they turn soft.
Add the green chilies, curry leaves and saute few seconds.
Add ginger garlic paste and saute to get rid of raw smell.
Add salt as per taste, red chilli powder mix, saute and cover the lid.
Add the pressure cooked mutton into it
Cook the mutton until the onions turn into a gravy.
Remove the lid and add coriander powder, cumin powder, black pepper powder.
Add garam masala powder, mix well.
Cook the mutton until the water gets absorbed and a good roasted gravy like texture is formed.
Keep stirring in between until it forms a roasted texture.
Lastly, roast the mutton for few minutes by stirring on low flame.
Switch off the flame.
Sprinkle lemon extract all over the mutton.
Serve hot.