Preheat oven to 200°C (400°F) or prepare air fryer.
Heat oil in a pan and sauté onion, garlic, and ginger until soft.
Add chicken and cook until fully done.
Season with spices, salt, and pepper, and cook until mixture is slightly dry.
Let the filling cool completely.
Prepare samosa wrappers and shape into cones or pockets.
Fill with chicken mixture and seal tightly.
Place on baking tray or in air fryer, lightly brush or spray with oil.
Bake for 15–20 minutes or air fry for 12–15 minutes until golden and crispy.
Blend all chutney ingredients until smooth.
Serve samosas hot with green chutney.