Using a mortar & pestle, or a spice grinder, combine fennel, cardamom, coriander, cloves, cumin, paprika, garlic powder, salt, peppercorns & red pepper flakes and grind to a powder.
Rub spice mixture over the salmon fillet.
Cover fillet in plastic wrap and refrigerate 5-6 hours.
Preheat oven to 400°
Put salmon fillet on a parchment-lined baking sheet.
Bake in the center of the oven for 20 minutes, or until salmon flakes easily with a fork and the spice rub forms a crust.
In a small bowl, combine yogurt, mint, cilantro, salt, lemon juice and pomegranate seeds.
Serve salmon hot, with raita.
Notes
Prep time indicated does not include marinating time.Ovens, and grills vary in temperature, so check your fish after 15 minutes. It should flake easily with a fork, but still be moist looking and pink.