In a pressure cooker, heat ½ cup desi ghee.
Add sliced onions and sauté until golden.
Add mutton and cook for 2 minutes on medium flame.
Add ginger garlic paste and cook 1 minute.
Add all powder spices + whole spices, mix well and cook 2 minutes.
Add 1 litre water, cover and pressure cook for 25 minutes on medium flame.
Open lid, add whisked yogurt, mix and cook 2-3 minutes.
Add the grinded special Kunna masala and cook 5 minutes.
Mix 1 tbsp roasted flour with water (slurry) and add gradually until you get Kunna consistency.
Sprinkle kala zeera, garnish with coriander + ginger.
Serve hot with Roghni Naan.