1. Skin, wash and clean the chicken. Make incisions with a sharp knife on breast and leg pieces.

2. Apply a mixture of red chilli powder, lemon juice and salt to the chicken and keep it aside for half an hour.

3. Remove whey of yogurt by hanging it in a muslin cloth for fifteen to twenty minutes. Mix red chilli powder, salt, ginger-garlic paste, lemon juice, garam masala powder and mustard oil to the yogurt.

4. Apply this marinade onto the chicken pieces and refrigerate for three to four hours.

5. Put the chicken onto the skewers and cook in a moderately hot tandoor or a pre-heated oven (200 degrees C) for ten to twelve minutes or until almost done. Baste it with butter and cook for another four minutes.

Sprinkle chaat masala powder and serve with four onion rings and lemon wedges.