Melt jaggery in 1/2 cup of water. Remove the impurities.
Make a smooth paste of jackfruit pieces without adding any water.
In a big bowl add jackfruit paste,jaggery syrup and coconut. Mix well with your hands.
Add rice flour little by little and make a smooth dough. It should not be too thick or too loose.
Now take the leaf and make cones with it and fill the dough inside.
Bend the top of the leaves and press inside to cover the top. Use toothpicks to keep the leaves closed.
Steam it around 20-30 minutes or till its done.
Serve hot