Boil milk in a deep pan and simmer till it reduces and thickens slightly. Add rice powder mixed in a little water and stir.
Cook till the mixture thickens a little more. Add saffron and continue to cook. Add almonds, pistachios and green cardamom powder and mix well.
Add sugar and stir till sugar dissolves. Add chenna and mix. Take it off the heat and set aside to cool. Serve. If you wish you can have it hot too.