Indian Mango Chutney

Name: Indian Mango Chutney
Ingredients: 1 tablespoon vegetable oil; 2 teaspoons fresh ginger, finely minced; 2 cloves garlic, finely minced; 1 red chili, sliced; 2 teaspoons whole nigella seeds; 1 teaspoon ground coriander; ½ teaspoon ground cumin; ¼ teaspoon turmeric; ¼ teaspoon ground cardamom; ¼ teaspoon ground cloves; ¼ teaspoon ground cinnamon; ¼ teaspoon salt; 4-5 mangoes, peeled and diced; 2 cups white granulated sugar; 1 cup white vinegar