Marinated in spiced yoghurt, Kashmiri chillies, and garlic, then roasted over roaring tandoor charcoal embers with charred edges.
Coat the fish in yogurt, ground coconut, ginger-garlic paste, green chilies, curry leaves, turmeric, and salt; rest 30 minutes only.
Thread the cubes onto skewers.
Cook over medium-high heat, basting with coconut oil.
Grill 6 to 8 minutes until lightly charred and just cooked through; do not overcook.
Serve immediately with lime wedges.