Mix together the yogurt, chilli powder, ginger, garlic, coriander and oil in a large bowl and season with salt and pepper.
Add the chops to this mixture and coat them thoroughly. Cover and marinate for at least 3 hours (ideally 10 hours) in the refrigerator, if time allows.
Place the chops on a lightly oiled grill pan. Cook under a preheated hot grill for 4–6 minutes on each side or until tender. Serve with pilau rice and a cherry tomato, onion and coriander salad.