Heat oil in a pan and sauté chopped onions until golden brown.
Add ginger-garlic paste and green chilies, cook for 1–2 minutes.
Add mutton keema and cook on medium flame until it changes color.
Add salt, red chili powder, and garam masala. Mix well.
Cook until the mixture becomes dry and fully cooked.
Let the filling cool completely.
Fill the keema mixture into samosa sheets, fold into triangle shapes.
Deep fry in hot oil until crispy and golden brown.