Wash and soak together the rice, urad dal,chana dal in water for at least 4-5 hours. Drain the water and transfer all the ingredients to the mixer grinder and make the mixture dosa-batter consistency. Transfer the batter to a bowl add salt and mix well cover it and leave to ferment overnight. Next morning, finely chop the onion and green chilli then add to the batter along with the curry leaves Mix well.
Heat the paddu maker on a medium flame and pour oil into all the moulds. Next pour spoons full of the batter into the moulds.
Turn the balls & fry on both sides till their skin becomes golden brown.