1 can Ratna brand Alphonso Mango pulp (only available online or at Indian stores)
Line a couple of paper towels in a colander. Place this colander in a large mixing bowl. Pour yogurt into this colander and set aside for half an hour, allowing for sour yogurt water to drain.
Pour strained yogurt in a mixing bowl, add ice, cardamom powder and let it sit for 15 minutes. Then whisk for a couple of minutes. Serve.