Dry roast 1 tbsp of white lentil in a pan on low flame till it turn golden brown. Let it cool down completely and grind it to make a fine powder. Sieve the flour and keep it aside.
Add jaggery with 4-5 tbsp of water in a pan and bring it to boil. Let it cool down completely and strain the jaggery water.
Roast rice flour for few minutes on low flame. Make sure that the color doesn't change. Sift the flour.
Add rice flour, white lentil flour, green cardamom powder and butter and mix it well.
Start adding jaggery water to make a soft dough. You can add extra water.
Roll the dough into small balls and spread them on a plate.
Heat the oil for deep frying. Lower the flame and slowly drop the 5-6 balls in oil.
Deep fry them till it turns to dark brown color. Repeat the same process for the remaining dough. Spread the fried balls on a plate and when it is completely down completely, store it in a airtight container.