Step #1 Make incisions with a sharp knife on breast & leg pieces.
Step #2 Apply a mixture of kashmiri red chilli powder, lemon juice & salt to the chicken & set it aside for half an hr.
Step #3 Remove whey of yogurt by hanging it in a muslin cloth for fifteen to twenty mins.
Step #4 Mix Kashmiri red chilli powder, salt, lemon juice, ginger-garlic paste, garam masala powder & mustard oil into the yogurt.
Step #5 Apply this marinade on the chicken pieces & put in the fridge for three to four hrs.
Step #6 Put the chicken onto the skewers & cook in a moderately hot tandoor or a pre-heated oven (200 degrees Celsius) for ten to twelve mins or until almost done.
Step #7 Baste it with butter & cook for another four mins.
Step #8 Sprinkle top chaat masala powder & serve this with four onion rings & lemon wedges.