Take the instant gulab jamun mix powder in a mixing bowl.
Add milk little by little and gently mix to make a smooth and soft dough.
Cover and set aside for a few minutes.
Meanwhile combine the cardamom powder, sugar and water in a wide vessel and let the sugar dissolves completely.
Let the syrup to a boil for 7 – 8 minutes. Turn off the flame. Cover and set aside.
Heat oil in a pan over medium flame.
Meanwhile, divide the dough into small balls.
Stuff the each with few chocolate chips and make round and smooth balls without any wide cracks
Do not apply too much pressure while making the balls.
When the oil is hot (not smoking hot) enough to fry the gulab jamuns, reduce the flame to low.
Slowly drop the prepared dough balls into the oil and deep fry them until dark brown color.
Do not overcrowd, fry a few at a time.
Keep rolling the jamuns while frying for even browning.
Take the fried jamuns out of the oil and add them to the hot sugar syrup. If needed, heat the sugar syrup again before adding the fried jamuns to it.
Let them soak in the sugar syrup for an hour or two.
Garnish with chopped nuts and serve chilled.