The Prawn Shell, retain tails, de-vein, wash and pat dry. The First Marination Mix all ingredients in a bowl, rub prawns with this marinade and reserve for 15 minutes. Squeeze prawns gently between palms to remove excess moisture. Keep chilled. The Second Marination Grate cheese. Put yoghurt cheese in bowl, add remaining ingredients and whisk. Rub prawns with this marinade and refrigerate for an hour. Cooking Skewer the prawns, keeping a tray underneath to collect the drippings, or arrange in a greased roasting tray. Roast in a moderately hot tandoor for 5 minutes(if grilled on a charcoal grill, about same time). Remove and hang the skewers to allow the excess moisture to drip off (appox. 2 minutes), baste with butter and roast again for 4 minutes (about the same time on char grill). Remove from the skewer and serve with desired garnishes.