Cumin Lamb Kebabs With Fresh Mango Chutney

Name: Cumin Lamb Kebabs With Fresh Mango Chutney
Ingredients: 1 tablespoon cumin seeds; 2 teaspoons black peppercorns; Cardamom seeds from 2 pods (scant 1/8 teaspoon); 2 whole cloves; 1 dried red chile, crumbled; 1/4 cup cashews, coarsely chopped; 2 tablespoons dry red wine; 1/8 teaspoon ground mace or nutmeg; 2 cups plain low-fat yogurt; Juice of 2 lemons; Salt; 2 pounds boneless leg of lamb, cut into 1 1/2-inch pieces; 1 large mango, peeled, fruit cut off the pit; 2 cups cilantro leaves; 1 cup mint leaves; 2 teaspoons chopped shallot; 1/2 teaspoon chopped garlic; Vegetable oil, for brushing