Skin chicken. Place chicken pieces in a 2-quart rectangular baking dish.
For sauce, in a small bowl stir together yogurt, lemon juice, ginger, cooking oil, garlic, chili powder, cumin, paprika, salt, and turmeric. Spoon sauce atop chicken. Cover and refrigerate for at least 2 hours or up to 24 hours, turning occasionally.
Bake, uncovered, in a 375 degree F oven for 25 minutes. Spoon juices over chicken and bake for 25 minutes more or until chicken is tender and cooked through. Transfer chicken to a platter (discard pan juices). Makes 4 to 6 servings.