Heat oil in a pressure cooker ,add chopped garlic, sliced onions ,saute it for a while.
Add chicken pieces,all veggies , half quantity black peppercorns powder,sugar, salt ,fry it in low flame for couple of minutes.
Now add wheat flour give a quick mix ,add 3-4 cup of water ,close the lid till a whistle, keep aside.
Open the pressure cooker ,add milk ,boil it for 2-3 minutes,put off the flame.
Add rest of the peppercorns powder and butter.
Serve hot.
Enjoy with garlic bread.
