Take 500 grams of grated coconut and keep it aside.
In a pan, add 250 grams of jaggery and heat it on a medium flame until it melts completely.
Add the grated coconut to the melted jaggery and mix well. Cook this mixture on a low flame for about 15-20 minutes until it thickens.
Once the mixture is thick enough, turn off the flame and let it cool for a while.
When the mixture is cool enough to handle, shape it into small round balls or 'naru'.
Let these 'naru' cool completely before serving.