Method: 

1.Skin  and cut deep slashes into chicken, coat with marinade, chill: Cut deep slashes (to the bone) in 3-4 places on the leg/thigh pieces. Just make 2-3 cuts if you are using separate drumsticks and thighs. Coat the chicken in the marinade, cover and chill for at least an hour (preferably 6 hours), no more than 8 hours.

2. Whisk spices into yogurt, add lemon juice, garlic, salt, ginger: Whisk the cooled spice-oil mixture into the yogurt, then mix in the lemon juice, garlic, salt and ginger.

3. Thread the marinated chicken into skewer..

4.Grill the chicken over  the  grill/ on the BBQ or  in the tandoor oven.