Heat 2 tablespoons of oil in a large pot, fry halved potatoes until golden; set aside.
In the same pot, add remaining oil and sauté chopped onions until golden brown.
Add garlic, ginger, and tomatoes; cook until soft.
Stir in spices (salt, cumin, chili powder, black pepper, turmeric, cardamom, cinnamon) and yogurt.
Add chicken pieces and cook until browned and partially cooked.
Layer cooked potatoes and fresh mint over the chicken; cover and simmer on low heat for 30-40 minutes.
Remove lid, cook on medium heat for 5-10 minutes to let excess moisture evaporate.
Serve hot with sides like Pickled Celery and Mango Lassi for a perfect meal.