Soak the raisins in water, keep aside.
Soak the rice in water for 15 odd minutes, drain the water and pat dry.
Pour the milk in a heavy bottomed pan, throw in the bay leaves and green cardamom, cook over a medium flame for 15-20 minutes. Stir occasionally to avoid the milk from spilling.
Add the rice to the milk, cook over a medium flame, stirring frequently. Let the milk simmer till the rice is cooked to perfection.
Time to throw in the cashews and raisins and give the milk a hearty stir. Continue to cook for 8-10 minutes till it thickens.
Now add the kolar bora, cover and cook for another 2 odd minutes.
Switch off the heat, add the grated jaggery, while stirring continuously until the jaggery is completely incorporated into the milk. Allowed it to cool.