Take roasted gram dal in a mixer.
Powder it finely and keep it aside.
Wash the raw banana trim both edges and cut into halves.
Pressure cook for 2 whistles.
Remove the skin of the raw banana and keep it aside.
Take small onions, green chilli, red chilli, ginger, garlic, grated coconut, fennel seeds in a mixer.
Pulse it 2-3 times and then add the cooked vazhakkai to it.
Pulse it again till it is combined.
Take it in a bowl and add the powdered gram flour to it.
Mix everything till evenly mixed.
Make some balls out of the mixture.
Heat oil in a kadai and deep fry them till golden.
Drain in a kitchen tissue.
Vazhakkai kola urundai is ready.