Peel the skin off the mango and cut the flesh into 1-inch (2.5 cm) cubes. Discard the seed.
Heat up a sauce pan on low-medium heat and add the oil. Saute the ginger, garlic for a few seconds before adding the cinnamon, cloves, cardamom pods, ground cumin and ground coriander. Stir for about 10 seconds, the add the mangos, cook for about 5 minutes, or until the mangos softened.
Add the vinegar, salt, sugar and dried red chilies. Adjust the seasoning with additional salt and sugar to taste. Lower the heat to a simmer and cook for 10–15 minutes, or until the chutney has thickened.
Transfer the mango chutney to a jar or airtight container while it's still hot. Let it cool, then store it in the refrigerator for up to 4 weeks.