Grilled Tandoori Chicken

1 cup yogurt -- plain low-fat

4 cloves garlic -- minced

2 each Serrano chili peppers, up to

-- seeded and minced 2 tablespoons fresh ginger root -- grated

2 tablespoons lemon juice

2 tablespoons vegetable oil

1 teaspoon ground cumin

1/2 teaspoon salt

1/2 teaspoon ground coriander

1/2 teaspoon ground turmeric

1/2 teaspoon paprika

1/2 teaspoon cayenne pepper

1/4 teaspoon ground cinnamon

1/4 teaspoon ground cloves

1/4 teaspoon ground allspice

1/4 teaspoon black pepper

4 each skinless boneless chicken breast halves