Marinate the cleaned mutton with yogurt, 1 Tablespoon of ginger garlic green chili paste, raw papaya paste, some salt, all of the spice powder and 2 Tablespoons of mustard oil. Mix well and keep it in the refrigerator for overnight or at least 5 hours.
Then heat mustard oil in a pan.
Saute the whole spices for few seconds in hot oil.
Then add onion slices and fry until they become golden in color.
Add marinated mutton pieces along with the marination. Cook on high heat for 10 - 15 minutes.
Then add kashmiri red chili powder and cook for 10 minutes on medium flame.
Add another Tablespoon of ginger, garlic, green chili paste, cook for 5 minutes for a nice aroma.
Now add 2 cups of hot water, 1 Teaspoon of sugar. Mix well, cover the pan and cook until the meat becomes soft. If the curry becomes dry add some more water.
To hurry up the process you can cook the mutton in pressure cooker until 6-7 whistles come.
After cooking the meat properly, add javetri powder, garam masala powder and chopped green chilies. Mix well and turn off the heat.