Mix all ingredients except ghee and garnishes to marinate for about 4 hours, then grind to form a smooth, thick paste.
Knead this mixture well and mix in the roasted gram and the egg.
Cover and refrigerate for another hour.
About 25 minutes before serving, shape the meat around the skewers and place the kebabs on to a grill over a drip tray, or in a pre-heated oven (also on a drip tray).
If cooking them over a charcoal grill, you will have to keep rotating them so that they brown and cook evenly.
They should take 15-20 minutes to cook.
Brush with ghee and cook another 2 minutes.
Serve garnished with chaat masala onions and the lemon and serve with green chutney.
Key Ingredients: mutton, keema, ginger, garlic, green chillies, papaya, black cardamom, onion, clarified butter, egg, lemon rind, black pepper, coriander leaves, cloves, cinnamon, cumin seeds, mace, nutmeg