Clean and wash the sardines; pat dry. Score the fish to allow deeper penetration of the marinade.
Soak the dry chillies in warm water for 15 minutes and then use for blending.
Blend cloves, cumin, peppercorns, cinnamon, dry red chilli, ginger, garlic, turmeric, sugar, salt, tamarind and vinegar into a paste.
Rub the sardines with this paste and keep aside for 2 hours. Overnight marination is a great idea if you have the time.
Grill on a pan till done or shallow fry in oil.
Serve hot with lemon wedges and a side of fresh garden salad.