Start by mixing all the marinade ingredients together. Add in the chicken pieces, coat with the marinade. Then thread the chicken on to the 8 skewers. Leave in the fridge until you are ready to cook. To make the relish, just add all the ingredients into the processor and whiz for a few seconds, then taste for seasoning. Also store in the fridge until ready to serve. To cook the kebabs, place on a hot barbecue or grill pan for 5-6 minutes on each side until fully cooked. Chop up the cucumber and mix with a tablesp. of the relish. Serve the kebabs on a bed of rice with a spoonful of the cucumber salad and remaining relish on top.