Marinate kabab with all the given ingredients for marination, put on skewers, bake or bbq over charcoal, give dum of coal.
Heat ghee on a tawa, add onion finely sliced with all the spices, ¼ cup water, tomato paste, ketchup, fry well, add bbq chicken, sliced capsicum, tomato cubes, green chilies, kasuri methi, cook for 5 mins and remove.