Marinated in spiced yoghurt, Kashmiri chillies, and garlic, then roasted over roaring tandoor charcoal embers with charred edges.
Rub the fish with lemon juice, salt, and crushed carom seeds; rest 15 minutes.
Coat the fish in a mix of yogurt, roasted gram flour, ginger-garlic paste, and Kashmiri chili powder; rest 30 minutes.
Thread the strips gently onto skewers, avoiding breakage.
Cook over high heat or under a hot grill, basting with mustard oil.
Grill only 6 to 8 minutes until lightly charred and just cooked through.
Serve immediately with lemon wedges and green chutney.