In a large bowl, combine the Almonds, Cashews, Pistachios, Melon seeds, Peppercorns, Fennel seeds, Cinnamon, Poppy seeds, Cardamoms, Rose petals, and add enough water to cover the nuts. Soak for at least 2 hours or overnight for optimal results. Drain thoroughly, reserving the soaking water.
Peel the soaked Almonds and then place the drained Nuts in a blender with ¾ cup of the soaking Water. Blend until smooth.
Add Milk to this paste along with the Saffron-Milk mixture and Sugar; blend until creamy and smooth.
Refrigerate the Milk for at least 3 hours.
Serve chilled in individual glasses, garnished with chopped nuts and Saffron strands.