Take mutton, salt, turmeric powder in a pressure cooker.Dont need to add any water. Pressure cook for 5 whistle, simmer and cook for 15 mins. Turn off the heat and let the steam go all by itself. Open the cooker and set aside.
Heat oil in a wide kadai. Add in onions, green chillies and saute till golden.
Now add in ginger garlic paste and saute for a min.
Add in cooked mutton and keep frying.
Now add in soy sauce, vinegar and toss well. Keep cooking till the mutton is well roasted.