In a blender or mixer or juicer, add chilled mangoes, ice cream, milk, and blend until smooth. Check for sweetness and add sugar only if needed. Please do not add any water while blending.
The consistency of this drink should be thick and creamy. Till you are ready to serve, keep it in the refrigerator.
When you are ready to serve, pour ¾ of the serving glass with prepared milkshake, then add a scoop of ice cream, and garnish it with almonds, pistachios, raisins and some more mango chunks.