Take 1litre full fat whole milk in a thick bottomed pan or kadai began to heat the milk on low to medium flame till starts from a layer of cream/malai on top

So when you will see the cream floating on top, then with a spatula gently move the cream layer

Keep simmering the milk like this collecting the cream layer on the both side

Meanwhile soak almonds and nuts in hot water for 30 minutes,then remove their peels

Once the milk reduces to half then add sugar and then add saffron,1tsp cardamom powder stirr gently

Then the milk reduced to 1/3 its original quantity, then switch off the flame

Now Rabdi ready if you want to serve cool keep in refrigerator and then serve Garnish with saffron