Take a rack of lamb, and thoroughly trim the fat until the rib bone is exposed, with a technique known as Frenching.
In a bowl, add coriander powder, garam masala, red chili powder, salt, lemon juice, vinegar, ginger paste, papaya paste, garlic paste, and oil. Mix well.
Stir in coriander leaves and mix well.
Apply this mixture onto the rack of lamb. Rub well all over it.
Grill each side of the lamb chop over a high flame for 3-4 minutes.