In a chopper, add cooked rice, garlic, chopped mint, onion, and grind to a smooth dry paste.
In a large bowl, mix together the mutton mince, rice mixture, lemon rind, egg, salt, and pepper to a smooth dough-like mixture.
Refrigerate the meat mixture for a few minutes and then form it into small meatballs of 1 tablespoon each.
Heat a flat pan with some cooking oil, and shallow fry the meatballs till golden brown on all sides (for 4 minutes on each side).
Remove on a plate and keep warm.