Boil the banana, peel off the skin and mash well and keep aside.
Heat ghee in frying pan and stir-fry cashew nut and raisins along with coconut and cardamom together
Add sugar to the mix and stirr well.
Remove from the stove and allow it to cool.
Apply a touch of ghee on both the palms. Divide the mashed bananas into evenly sized balls.
Press a little with the help of a thump and stuff the mixture carefully inside and seal both the ends and give a shape of unnakkaya
Heat the oil in a deep bottomed pan and deep fry the bananas into golden yellow in color.
Serve them hot.