Using knife, cut the coconut into thin shavings. From 1/2 coconut, you will get 1/2 cup of coconut shavings.
Grease a steel plate with oil & keep aside.
Take a non stick pan & place on induction top.
Pour leftover sugar syrup in the pan.
Add fennel seeds and coconut shavings too. Mix while stirring on low flame.
Syrup will begin to boil. Keep stirring.
In 2 to 3 minutes (depending on the quantity of syrup), sugar syrup will start leaving the sides of the pan. Keep cooking.
When the sugar syrup will get a string making consistency, switch off the flame.
Immediately pour & spread the syrup mixture in the greased steel plate. Let it cool down completely.
Press the plate upwards from the bottom.
Now invert the kobbari patri & transfer in some serving plate. It's ready now. Break it into pieces of reasonable size and enjoy as & when you are carving for something sweet.