Soak channa in cold water for about 8 hours.
Pressure cook it for about 15 mins.
Smash the cooked channa well and keep it aside.
Mix together smashed channa, 1/2 cup of rusk powder, onion, green chillies, ginger and salt.
Mix 5 tbsp of maida with water and make it into a semisolid paste.
:- It should not be watery.
Make small balls off the channa mixture and and press it lightly.
Roll it in the remaining rusk powder.
Deep fry them in hot oil.