Wash and pat the chicken dry. Blend garlic, ginger, yogurt together. Add in three heaped tablespoon of khebab spice. Add salt if needed. Pour marinade over chicken and let it rest for 1 to 4 hours. Light charcoal for grilling.
Remove chicken from marinade, and shake of excess. (Optional: Liberally sprinkle extra khebab spice on chicken before grill). Brush grill with oil and heat till medium hot. Put chicken on the grill and cook on both sides till done. Serve with any choice of carbohydrate for a full meal.
Most khebab spice has enough salt already. Do taste the spice before adding salt to the marinade.