Cover the tofu with the tamari and let marinate whilst you make the sauce.
Blend yoghurt, garlic, coriander seeds, cayenne pepper, cumin, turmeric, ginger powder, onion, coriander, lemon juice, and pepper til smooth. Simmer in a small pot for about 5 minutes.
Drain tofu then fry with the remainder of the oil until golden on all sides. Serve on a platter with the sauce poured over the top.